diff --git a/js/entity/UnknownKeysEntity.js b/js/entity/UnknownKeysEntity.js
index 2f21fc4..f90b427 100644
--- a/js/entity/UnknownKeysEntity.js
+++ b/js/entity/UnknownKeysEntity.js
@@ -11,6 +11,10 @@ export default class UnknownKeysEntity extends IEntity {
         },
     }
 
+    static {
+        this.cleanupAttributes(this.attributes)
+    }
+
     constructor(values) {
         super(values)
         /** @type {String} */ this.lookbehind
diff --git a/js/entity/VariableReferenceEntity.js b/js/entity/VariableReferenceEntity.js
index f57987a..4c47d17 100755
--- a/js/entity/VariableReferenceEntity.js
+++ b/js/entity/VariableReferenceEntity.js
@@ -18,6 +18,10 @@ export default class VariableReferenceEntity extends IEntity {
         },
     }
 
+    static {
+        this.cleanupAttributes(this.attributes)
+    }
+
     constructor(values) {
         super(values)
         /** @type {String} */ this.MemberName
diff --git a/js/entity/Vector2DEntity.js b/js/entity/Vector2DEntity.js
index 7b1df3e..2445089 100644
--- a/js/entity/Vector2DEntity.js
+++ b/js/entity/Vector2DEntity.js
@@ -7,6 +7,10 @@ export default class Vector2DEntity extends IEntity {
         Y: 0,
     }
 
+    static {
+        this.cleanupAttributes(this.attributes)
+    }
+
     constructor(values) {
         super(values)
         /** @type {Number} */ this.X
diff --git a/js/entity/VectorEntity.js b/js/entity/VectorEntity.js
index 451327c..f4c2c11 100644
--- a/js/entity/VectorEntity.js
+++ b/js/entity/VectorEntity.js
@@ -8,6 +8,10 @@ export default class VectorEntity extends IEntity {
         Z: 0,
     }
 
+    static {
+        this.cleanupAttributes(this.attributes)
+    }
+
     constructor(values) {
         super(values)
         /** @type {Number} */ this.X