diff --git a/reactos/lib/crt/stdlib/splitp.c b/reactos/lib/crt/stdlib/splitp.c
index 066f9e5aabb..5a62acefffa 100644
--- a/reactos/lib/crt/stdlib/splitp.c
+++ b/reactos/lib/crt/stdlib/splitp.c
@@ -44,8 +44,9 @@ void _tsplitpath(const _TCHAR* path, _TCHAR* drive, _TCHAR* dir, _TCHAR* fname,
         }
     }
 
-  tmp_ext = (_TCHAR*)_tcsrchr(path,'.');
-  if (!tmp_ext)
+  /* If the dot is before the last dir separator, it's part
+   * of a directory name, not the start of the extension */
+  if (!tmp_ext || tmp_ext < tmp_dir)
     {
       tmp_ext = (_TCHAR*)path+_tcslen(path);
     }