diff --git a/include/menuControl.h b/include/menuControl.h
index 5276a7e..ba32af5 100644
--- a/include/menuControl.h
+++ b/include/menuControl.h
@@ -67,7 +67,7 @@ class MenuControl {
          * 
          * @param menu 
          */
-        void setParentMenu(MenuControl* menu) { this->parentMenu = menu; }
+        void setParentMenu(MenuControl* menu);
         // MenuControl* getParentMenu() { return this->parentMenu; }
 
         /**