diff --git a/source/blenderplayer/bad_level_call_stubs/stubs.c b/source/blenderplayer/bad_level_call_stubs/stubs.c
index 41e85ab1249..949e85af1d2 100644
--- a/source/blenderplayer/bad_level_call_stubs/stubs.c
+++ b/source/blenderplayer/bad_level_call_stubs/stubs.c
@@ -139,6 +139,7 @@ void WM_menutype_free(void){}
 void WM_menutype_freelink(struct MenuType* mt){}
 int WM_menutype_add(struct MenuType *mt) {return 0;}
 int WM_operator_props_dialog_popup (struct bContext *C, struct wmOperator *op, int width, int height){return 0;}
+int WM_operator_confirm(struct bContext *C, struct wmOperator *op, struct wmEvent *event){return 0;}
 struct MenuType *WM_menutype_find(const char *idname, int quiet){return (struct MenuType *) NULL;}
 void WM_operator_stack_clear(struct bContext *C) {}