diff --git a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
index 1e23c43f99..b9d533e062 100644
--- a/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
+++ b/src/System.Management.Automation/engine/CommandCompletion/CompletionCompleters.cs
@@ -7705,9 +7705,7 @@ namespace System.Management.Automation
                     bool withColon = wordToComplete.EndsWith(':');
                     wordToComplete = withColon ? wordToComplete.Remove(wordToComplete.Length - 1) : wordToComplete;
 
-                    string enumString = LanguagePrimitives.EnumSingleTypeConverter.EnumValues(typeof(SwitchFlags));
-                    string separator = CultureInfo.CurrentUICulture.TextInfo.ListSeparator;
-                    string[] enumArray = enumString.Split(separator, StringSplitOptions.RemoveEmptyEntries);
+                    string[] enumArray = LanguagePrimitives.EnumSingleTypeConverter.GetEnumNames(typeof(SwitchFlags));
 
                     var pattern = WildcardPattern.Get(wordToComplete + "*", WildcardOptions.IgnoreCase);
                     var enumList = new List<string>();
diff --git a/src/System.Management.Automation/engine/LanguagePrimitives.cs b/src/System.Management.Automation/engine/LanguagePrimitives.cs
index 87a6dcb780..ed1dc18927 100644
--- a/src/System.Management.Automation/engine/LanguagePrimitives.cs
+++ b/src/System.Management.Automation/engine/LanguagePrimitives.cs
@@ -2077,6 +2077,14 @@ namespace System.Management.Automation
                 return string.Join(CultureInfo.CurrentUICulture.TextInfo.ListSeparator, enumHashEntry.names);
             }
 
+            /// <summary>
+            /// Returns all names for the provided enum type.
+            /// </summary>
+            /// <param name="enumType">The enum type to retrieve names from.</param>
+            /// <returns>Array of enum names for the specified type.</returns>
+            internal static string[] GetEnumNames(Type enumType)
+                => EnumSingleTypeConverter.GetEnumHashEntry(enumType).names;
+
             /// <summary>
             /// Returns all values for the provided enum type.
             /// </summary>