diff --git a/reactos/subsystems/win32/win32k/ntuser/painting.c b/reactos/subsystems/win32/win32k/ntuser/painting.c
index ebc4da2f22a..cb48e73dbb9 100644
--- a/reactos/subsystems/win32/win32k/ntuser/painting.c
+++ b/reactos/subsystems/win32/win32k/ntuser/painting.c
@@ -1821,7 +1821,7 @@ BOOL UserDrawCaption(
             ButtonWidth = UserGetSystemMetrics(SM_CXSMSIZE) - 2;
          else ButtonWidth = UserGetSystemMetrics(SM_CXSIZE) - 2;
 
-         if(pWnd->Style & WS_SYSMENU)
+         if ((pWnd != NULL) && (pWnd->Style & WS_SYSMENU))
          {
             r.right -= 3 + ButtonWidth;
             if(! (uFlags & DC_SMALLCAP))