diff --git a/reactos/lib/kernel32/file/curdir.c b/reactos/lib/kernel32/file/curdir.c
index d161e9300c3..a15648374ba 100644
--- a/reactos/lib/kernel32/file/curdir.c
+++ b/reactos/lib/kernel32/file/curdir.c
@@ -15,7 +15,7 @@
 #include <ctype.h>
 #include <string.h>
 
-//#define NDEBUG
+#define NDEBUG
 #include <kernel32/kernel32.h>
 
 /* GLOBALS *******************************************************************/
@@ -146,9 +146,6 @@ WINBOOL STDCALL SetCurrentDirectoryW(LPCWSTR lpPathName)
         return FALSE;
      }
 
-   /* Drive letter MUST be capitalized */
-   PathName[0] = towupper (PathName[0]);
-
    DPRINT("PathName %w\n",PathName);
 
    hDir = CreateFileW(PathName,