diff --git a/reactos/subsystems/mvdm/dos/command.S b/reactos/subsystems/mvdm/dos/command.S
index 122bae9fb45..2aa6b530df8 100644
--- a/reactos/subsystems/mvdm/dos/command.S
+++ b/reactos/subsystems/mvdm/dos/command.S
@@ -17,7 +17,7 @@
 #include "asmxtras.inc"
 #include <isvbop.inc>
 
-// #define NDEBUG
+#define NDEBUG
 
 /* DEFINES ********************************************************************/