diff --git a/source/gui/IGUITextOwner.h b/source/gui/IGUITextOwner.h
index e4e2d7e2c0..2d8bfa48d2 100644
--- a/source/gui/IGUITextOwner.h
+++ b/source/gui/IGUITextOwner.h
@@ -59,7 +59,7 @@ public:
 	/**
 	 * Subscribe the custom JS methods.
 	 */
-	void CreateJSObject() override;
+	void CreateJSObject();
 
 	/**
 	 * @see IGUIObject#HandleMessage()
@@ -91,7 +91,7 @@ public:
 	/**
 	 * Workaround to avoid a dynamic_cast which can be 80 times slower than this.
 	 */
-	virtual void* GetTextOwner() override { return this; }
+	virtual void* GetTextOwner() { return this; }
 
 protected:
 
diff --git a/source/gui/scripting/JSInterface_IGUITextOwner.cpp b/source/gui/scripting/JSInterface_IGUITextOwner.cpp
index 0720de4213..1020791e18 100644
--- a/source/gui/scripting/JSInterface_IGUITextOwner.cpp
+++ b/source/gui/scripting/JSInterface_IGUITextOwner.cpp
@@ -24,7 +24,7 @@
 
 JSFunctionSpec JSI_IGUITextOwner::JSI_methods[] =
 {
-	JS_FN("getTextSize", GetTextSize, 0, 0),
+	JS_FN("getTextSize", JSI_IGUITextOwner::GetTextSize, 0, 0),
 	JS_FS_END
 };