diff --git a/dlls/user32/tests/listbox.c b/dlls/user32/tests/listbox.c
index 5e650e0..42a4afc 100644
--- a/dlls/user32/tests/listbox.c
+++ b/dlls/user32/tests/listbox.c
@@ -240,9 +240,11 @@ static LRESULT WINAPI main_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARA
     {
     case WM_DRAWITEM:
     {
-        RECT rc_item, rc_client, rc_clip;
+        RECT rc_item, rc_client, rc_clip, rc_empty;
         DRAWITEMSTRUCT *dis = (DRAWITEMSTRUCT *)lparam;
 
+        ZeroMemory(&rc_empty, sizeof(RECT));
+
         trace("%p WM_DRAWITEM %08lx %08lx\n", hwnd, wparam, lparam);
 
         ok(wparam == dis->CtlID, "got wParam=%08lx instead of %08x\n",
@@ -254,7 +256,10 @@ static LRESULT WINAPI main_window_proc(HWND hwnd, UINT msg, WPARAM wparam, LPARA
                rc_client.left, rc_client.top, rc_client.right, rc_client.bottom);
         GetClipBox(dis->hDC, &rc_clip);
         trace("clip rect (%d,%d-%d,%d)\n", rc_clip.left, rc_clip.top, rc_clip.right, rc_clip.bottom);
-        ok(EqualRect(&rc_client, &rc_clip), "client rect of the listbox should be equal to the clip box\n");
+        ok(EqualRect(&rc_client, &rc_clip) ||
+           EqualRect(&rc_clip, &rc_empty),
+           "client rect of the listbox should be equal to the clip box,"
+           "or the clip box should be empty\n");
 
         trace("rcItem (%d,%d-%d,%d)\n", dis->rcItem.left, dis->rcItem.top,
                dis->rcItem.right, dis->rcItem.bottom);
-- 
1.5.4.3