diff --git a/dlls/comctl32/propsheet.c b/dlls/comctl32/propsheet.c
index eb4e9a1d569..c8455551fa4 100644
--- a/dlls/comctl32/propsheet.c
+++ b/dlls/comctl32/propsheet.c
@@ -1907,6 +1907,7 @@ static void PROPSHEET_CleanUp(HWND hwndDlg)
                                                        PropSheetInfoStr);
 
   TRACE("\n");
+  if (!psInfo) return;
   if (HIWORD(psInfo->ppshheader.pszCaption))
       HeapFree(GetProcessHeap(), 0, (LPVOID)psInfo->ppshheader.pszCaption);