diff --git a/index.ts b/index.ts
index 2e905e68..783b3476 100644
--- a/index.ts
+++ b/index.ts
@@ -10,7 +10,7 @@ import { Obfuscator } from './src/Obfuscator';
 
 class JavaScriptObfuscator {
     /**
-     * @type any
+     * @type {IOptions}
      */
     private static defaultOptions: IOptions = {
         compact: true,
diff --git a/src/Obfuscator.ts b/src/Obfuscator.ts
index 947be6a9..673b15bc 100644
--- a/src/Obfuscator.ts
+++ b/src/Obfuscator.ts
@@ -48,7 +48,7 @@ export class Obfuscator {
     ]);
 
     /**
-     * @type any
+     * @type {IOptions}
      */
     private options: IOptions;
 
diff --git a/src/node-obfuscators/NodeObfuscator.ts b/src/node-obfuscators/NodeObfuscator.ts
index 4d929303..6be489ad 100644
--- a/src/node-obfuscators/NodeObfuscator.ts
+++ b/src/node-obfuscators/NodeObfuscator.ts
@@ -15,7 +15,7 @@ export abstract class NodeObfuscator implements INodeObfuscator {
     protected nodes: Map <string, ICustomNode>;
 
     /**
-     * @type any
+     * @type {IOptions}
      */
     protected options: IOptions;