diff --git a/source/blender/editors/interface/interface.c b/source/blender/editors/interface/interface.c
index 91e5f2fe61d..4fc2fb9ab95 100644
--- a/source/blender/editors/interface/interface.c
+++ b/source/blender/editors/interface/interface.c
@@ -2874,7 +2874,7 @@ static uiBut *ui_def_but(uiBlock *block, int type, int retval, const char *str,
 	}
 
 	/* keep track of UI_interface.h */
-	if      (ELEM8(but->type, BLOCK, BUT, LABEL, PULLDOWN, ROUNDBOX, BUTM, SCROLL, SEPR)) {}
+	if      (ELEM9(but->type, BLOCK, BUT, LABEL, PULLDOWN, ROUNDBOX, LISTBOX, BUTM, SCROLL, SEPR)) {}
 	else if (but->type >= SEARCH_MENU) {}
 	else but->flag |= UI_BUT_UNDO;