diff --git a/reactos/dll/win32/imagehlp/modify.c b/reactos/dll/win32/imagehlp/modify.c
index 5f61c77ff2d..fc340a787ab 100644
--- a/reactos/dll/win32/imagehlp/modify.c
+++ b/reactos/dll/win32/imagehlp/modify.c
@@ -1044,7 +1044,7 @@ DWORD IMAGEAPI MapFileAndCheckSumA(
 			      0,
 			      0,
 			      0);
-  if (hMapping == 0)
+  if (BaseAddress == NULL)
   {
     CloseHandle(hMapping);
     CloseHandle(hFile);
@@ -1110,7 +1110,7 @@ DWORD IMAGEAPI MapFileAndCheckSumW(
 			      0,
 			      0,
 			      0);
-  if (hMapping == 0)
+  if (BaseAddress == NULL)
   {
     CloseHandle(hMapping);
     CloseHandle(hFile);