diff --git a/binaries/data/mods/_test.sim/simulation/components/test.js b/binaries/data/mods/_test.sim/simulation/components/test.js
index 479427a5ba..582e8455be 100644
--- a/binaries/data/mods/_test.sim/simulation/components/test.js
+++ b/binaries/data/mods/_test.sim/simulation/components/test.js
@@ -18,7 +18,7 @@ Engine.RegisterComponentType(IID_Test1, "TestScript1A", TestScript1A);
 
 function TestScript1B() {}
 
-TestScript1B.prototype = new TestScript1A();
+TestScript1B.prototype = Object.create(TestScript1A.prototype);
 
 TestScript1B.prototype.Init = function() {
 	this.x = 102000;
diff --git a/binaries/data/mods/public/simulation/ai/petra/_petrabot.js b/binaries/data/mods/public/simulation/ai/petra/_petrabot.js
index 4e801d29d6..1fdfdaf4cd 100644
--- a/binaries/data/mods/public/simulation/ai/petra/_petrabot.js
+++ b/binaries/data/mods/public/simulation/ai/petra/_petrabot.js
@@ -21,7 +21,7 @@ PETRA.PetraBot = function(settings)
 	this.savedEvents = {};
 };
 
-PETRA.PetraBot.prototype = new API3.BaseAI();
+PETRA.PetraBot.prototype = Object.create(API3.BaseAI.prototype);
 
 PETRA.PetraBot.prototype.CustomInit = function(gameState)
 {