diff --git a/reactos/drivers/wdm/audio/backpln/portcls/private.hpp b/reactos/drivers/wdm/audio/backpln/portcls/private.hpp
index 874d2266d20..17adc4c8af5 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/private.hpp
+++ b/reactos/drivers/wdm/audio/backpln/portcls/private.hpp
@@ -14,7 +14,7 @@
 
 #include <ntddk.h>
 #include <portcls.h>
-#define YDEBUG
+#define NDEBUG
 #include <debug.h>
 
 #include <dmusicks.h>