diff --git a/src/JavaScriptObfuscator.ts b/src/JavaScriptObfuscator.ts
index 7c0f9725..a2ea456a 100644
--- a/src/JavaScriptObfuscator.ts
+++ b/src/JavaScriptObfuscator.ts
@@ -2,7 +2,7 @@ import { IObfuscationResult } from "./interfaces/IObfuscationResult";
 import { IOptionsPreset } from "./interfaces/IOptionsPreset";
 
 import { JavaScriptObfuscatorCLI } from "./cli/JavaScriptObfuscatorCLI";
-import { JavaScriptObfuscatorInstance } from "./JavaScriptObfuscatorInstance";
+import { JavaScriptObfuscatorInternal } from "./JavaScriptObfuscatorInternal";
 
 export class JavaScriptObfuscator {
     /**
@@ -11,7 +11,7 @@ export class JavaScriptObfuscator {
      * @returns {string}
      */
     public static obfuscate (sourceCode: string, options: IOptionsPreset = {}): string {
-        let javaScriptObfuscator: JavaScriptObfuscatorInstance = new JavaScriptObfuscatorInstance(sourceCode, options);
+        let javaScriptObfuscator: JavaScriptObfuscatorInternal = new JavaScriptObfuscatorInternal(sourceCode, options);
 
         javaScriptObfuscator.obfuscate();
 
@@ -27,7 +27,7 @@ export class JavaScriptObfuscator {
         sourceCode: string,
         options: IOptionsPreset = {}
     ): IObfuscationResult {
-        let javaScriptObfuscator: JavaScriptObfuscatorInstance = new JavaScriptObfuscatorInstance(sourceCode, options);
+        let javaScriptObfuscator: JavaScriptObfuscatorInternal = new JavaScriptObfuscatorInternal(sourceCode, options);
 
         javaScriptObfuscator.obfuscate();
 
diff --git a/src/JavaScriptObfuscatorInstance.ts b/src/JavaScriptObfuscatorInternal.ts
similarity index 94%
rename from src/JavaScriptObfuscatorInstance.ts
rename to src/JavaScriptObfuscatorInternal.ts
index 437c4d94..0118af21 100644
--- a/src/JavaScriptObfuscatorInstance.ts
+++ b/src/JavaScriptObfuscatorInternal.ts
@@ -14,7 +14,7 @@ import { Obfuscator } from "./Obfuscator";
 import { Options } from "./Options";
 import { SourceMapCorrector } from "./SourceMapCorrector";
 
-export class JavaScriptObfuscatorInstance {
+export class JavaScriptObfuscatorInternal {
     /**
      * @type {GenerateOptions}
      */
@@ -60,7 +60,7 @@ export class JavaScriptObfuscatorInstance {
     private static generateCode (sourceCode: string, astTree: INode, options: IOptions): IGeneratorOutput {
         let escodegenParams: escodegen.GenerateOptions = Object.assign(
                 {},
-                JavaScriptObfuscatorInstance.escodegenParams
+                JavaScriptObfuscatorInternal.escodegenParams
             ),
             generatorOutput: IGeneratorOutput;
 
@@ -102,7 +102,7 @@ export class JavaScriptObfuscatorInstance {
 
         astTree = new Obfuscator(this.options).obfuscateNode(astTree);
 
-        this.generatorOutput = JavaScriptObfuscatorInstance.generateCode(this.sourceCode, astTree, this.options);
+        this.generatorOutput = JavaScriptObfuscatorInternal.generateCode(this.sourceCode, astTree, this.options);
     }
 
     /**
diff --git a/src/cli/JavaScriptObfuscatorCLI.ts b/src/cli/JavaScriptObfuscatorCLI.ts
index 819ac431..cfd6178a 100644
--- a/src/cli/JavaScriptObfuscatorCLI.ts
+++ b/src/cli/JavaScriptObfuscatorCLI.ts
@@ -9,7 +9,7 @@ import { DEFAULT_PRESET } from "../preset-options/DefaultPreset";
 
 import { CLIUtils } from "./CLIUtils";
 import { JavaScriptObfuscator } from "../JavaScriptObfuscator";
-import { JavaScriptObfuscatorInstance } from "../JavaScriptObfuscatorInstance";
+import { JavaScriptObfuscatorInternal } from "../JavaScriptObfuscatorInternal";
 import { Utils } from "../Utils";
 
 export class JavaScriptObfuscatorCLI {
@@ -178,7 +178,7 @@ export class JavaScriptObfuscatorCLI {
      * @param options
      */
     private processDataWithSourceMap (outputCodePath: string, options: IOptionsPreset): void {
-        let javaScriptObfuscator: JavaScriptObfuscatorInstance = new JavaScriptObfuscatorInstance(this.data, options),
+        let javaScriptObfuscator: JavaScriptObfuscatorInternal = new JavaScriptObfuscatorInternal(this.data, options),
             obfuscationResult: IObfuscationResult,
             outputSourceMapPath: string = CLIUtils.getOutputSourceMapPath(outputCodePath);