diff --git a/dlls/comctl32/toolbar.c b/dlls/comctl32/toolbar.c
index 63ba122a23f..0294a2d94a7 100644
--- a/dlls/comctl32/toolbar.c
+++ b/dlls/comctl32/toolbar.c
@@ -2945,7 +2945,7 @@ TOOLBAR_IsButtonHidden (HWND hwnd, WPARAM wParam, LPARAM lParam)
 
     nIndex = TOOLBAR_GetButtonIndex (infoPtr, (INT)wParam);
     if (nIndex == -1)
-	return FALSE;
+	return TRUE;
 
     return (infoPtr->buttons[nIndex].fsState & TBSTATE_HIDDEN);
 }