diff --git a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
index e3ead4c357..2dd6807fa6 100644
--- a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
+++ b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
@@ -234,7 +234,7 @@ namespace System.Management.Automation
             syntax = string.IsNullOrEmpty(syntax) ? name : syntax;
             bool needAmpersand;
 
-            if (CompletionHelpers.CompletionRequiresQuotes(name, false))
+            if (CompletionHelpers.CompletionRequiresQuotes(name))
             {
                 needAmpersand = quote == string.Empty && addAmpersandIfNecessary;
                 string quoteInUse = quote == string.Empty ? "'" : quote;
@@ -524,7 +524,7 @@ namespace System.Management.Automation
                                   + moduleInfo.ModuleType.ToString() + "\r\nPath: "
                                   + moduleInfo.Path;
 
-                    if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                    if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                     {
                         var quoteInUse = quote == string.Empty ? "'" : quote;
                         if (quoteInUse == "'")
@@ -1846,7 +1846,7 @@ namespace System.Management.Automation
                         string completionText = entry;
                         if (quote == string.Empty)
                         {
-                            if (CompletionHelpers.CompletionRequiresQuotes(entry, false))
+                            if (CompletionHelpers.CompletionRequiresQuotes(entry))
                             {
                                 realEntry = CodeGeneration.EscapeSingleQuotedStringContent(entry);
                                 completionText = "'" + realEntry + "'";
@@ -3220,7 +3220,7 @@ namespace System.Management.Automation
                         var completionText = eventLog.Log.ToString();
                         var listItemText = completionText;
 
-                        if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                        if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                         {
                             var quoteInUse = quote == string.Empty ? "'" : quote;
                             if (quoteInUse == "'")
@@ -3311,7 +3311,7 @@ namespace System.Management.Automation
                     var completionText = psJob.Name;
                     var listItemText = completionText;
 
-                    if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                    if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                     {
                         var quoteInUse = quote == string.Empty ? "'" : quote;
                         if (quoteInUse == "'")
@@ -3386,7 +3386,7 @@ namespace System.Management.Automation
                     var completionText = psJob.Name;
                     var listItemText = completionText;
 
-                    if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                    if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                     {
                         var quoteInUse = quote == string.Empty ? "'" : quote;
                         if (quoteInUse == "'")
@@ -3526,7 +3526,7 @@ namespace System.Management.Automation
                         continue;
 
                     uniqueSet.Add(completionText);
-                    if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                    if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                     {
                         var quoteInUse = quote == string.Empty ? "'" : quote;
                         if (quoteInUse == "'")
@@ -3579,7 +3579,7 @@ namespace System.Management.Automation
                 var completionText = providerInfo.Name;
                 var listItemText = completionText;
 
-                if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                 {
                     var quoteInUse = quote == string.Empty ? "'" : quote;
                     if (quoteInUse == "'")
@@ -3627,7 +3627,7 @@ namespace System.Management.Automation
                     var completionText = driveInfo.Name;
                     var listItemText = completionText;
 
-                    if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                    if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                     {
                         var quoteInUse = quote == string.Empty ? "'" : quote;
                         if (quoteInUse == "'")
@@ -3678,7 +3678,7 @@ namespace System.Management.Automation
                         var completionText = serviceInfo.DisplayName;
                         var listItemText = completionText;
 
-                        if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                        if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                         {
                             var quoteInUse = quote == string.Empty ? "'" : quote;
                             if (quoteInUse == "'")
@@ -3709,7 +3709,7 @@ namespace System.Management.Automation
                         var completionText = serviceInfo.Name;
                         var listItemText = completionText;
 
-                        if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                        if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                         {
                             var quoteInUse = quote == string.Empty ? "'" : quote;
                             if (quoteInUse == "'")
@@ -3765,7 +3765,7 @@ namespace System.Management.Automation
                     completionText = completionText.Replace("*", "`*");
                 }
 
-                if (!completionText.Equals("$", StringComparison.Ordinal) && CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                if (!completionText.Equals("$", StringComparison.Ordinal) && CompletionHelpers.CompletionRequiresQuotes(completionText))
                 {
                     var quoteInUse = effectiveQuote == string.Empty ? "'" : effectiveQuote;
                     if (quoteInUse == "'")
@@ -3815,7 +3815,7 @@ namespace System.Management.Automation
                         var completionText = aliasInfo.Name;
                         var listItemText = completionText;
 
-                        if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                        if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                         {
                             var quoteInUse = quote == string.Empty ? "'" : quote;
                             if (quoteInUse == "'")
@@ -3878,7 +3878,7 @@ namespace System.Management.Automation
                 var completionText = trace.Name;
                 var listItemText = completionText;
 
-                if (CompletionHelpers.CompletionRequiresQuotes(completionText, false))
+                if (CompletionHelpers.CompletionRequiresQuotes(completionText))
                 {
                     var quoteInUse = quote == string.Empty ? "'" : quote;
                     if (quoteInUse == "'")
diff --git a/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs b/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs
index 88a272d695..02303956dc 100644
--- a/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs
+++ b/src/System.Management.Automation/engine/CommandCompletion/CompletionHelpers.cs
@@ -14,8 +14,6 @@ namespace System.Management.Automation
     {
         private static readonly SearchValues<char> s_defaultCharsToCheck = SearchValues.Create("$`");
 
-        private static readonly SearchValues<char> s_escapeCharsToCheck = SearchValues.Create("$[]`");
-
         /// <summary>
         /// Get matching completions from word to complete.
         /// This makes it easier to handle different variations of completions with consideration of quotes.
@@ -121,14 +119,12 @@ namespace System.Management.Automation
             return string.Empty;
         }
 
-        internal static bool CompletionRequiresQuotes(string completion, bool escape)
+        internal static bool CompletionRequiresQuotes(string completion)
         {
             // If the tokenizer sees the completion as more than two tokens, or if there is some error, then
             // some form of quoting is necessary (if it's a variable, we'd need ${}, filenames would need [], etc.)
 
-            Language.Token[] tokens;
-            ParseError[] errors;
-            Language.Parser.ParseInput(completion, out tokens, out errors);
+            Parser.ParseInput(completion, out Token[] tokens, out ParseError[] errors);
 
             // Expect no errors and 2 tokens (1 is for our completion, the other is eof)
             // Or if the completion is a keyword, we ignore the errors
@@ -136,13 +132,13 @@ namespace System.Management.Automation
             if ((!requireQuote && tokens[0] is StringToken) ||
                 (tokens.Length == 2 && (tokens[0].TokenFlags & TokenFlags.Keyword) != 0))
             {
-                requireQuote = ContainsCharsToCheck(tokens[0].Text, escape);
+                requireQuote = ContainsCharsToCheck(tokens[0].Text);
             }
 
             return requireQuote;
         }
 
-        private static bool ContainsCharsToCheck(ReadOnlySpan<char> text, bool escape)
-            => text.ContainsAny(escape ? s_escapeCharsToCheck : s_defaultCharsToCheck);
+        private static bool ContainsCharsToCheck(ReadOnlySpan<char> text)
+            => text.ContainsAny(s_defaultCharsToCheck);
     }
 }