diff --git a/reactos/drivers/ksfilter/ks/priv.h b/reactos/drivers/ksfilter/ks/priv.h
index f05422f4aef..44f04149b6d 100644
--- a/reactos/drivers/ksfilter/ks/priv.h
+++ b/reactos/drivers/ksfilter/ks/priv.h
@@ -3,7 +3,7 @@
 
 #include <ntifs.h>
 #include <ntddk.h>
-#define YDEBUG
+#define NDEBUG
 #include <debug.h>
 #include <portcls.h>
 #include <ks.h>
diff --git a/reactos/drivers/wdm/audio/backpln/portcls/private.h b/reactos/drivers/wdm/audio/backpln/portcls/private.h
index 96bd00a2c36..a0dd108b646 100644
--- a/reactos/drivers/wdm/audio/backpln/portcls/private.h
+++ b/reactos/drivers/wdm/audio/backpln/portcls/private.h
@@ -9,7 +9,7 @@
 
 #include <ntddk.h>
 #include <portcls.h>
-#define YDEBUG
+#define NDEBUG
 #include <debug.h>
 
 #include <dmusicks.h>
diff --git a/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h b/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
index 8c442909e0f..8b440d82c0d 100644
--- a/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
+++ b/reactos/drivers/wdm/audio/legacy/wdmaud/wdmaud.h
@@ -5,7 +5,7 @@
 #include <ntddk.h>
 #include <portcls.h>
 #include <ks.h>
-#define YDEBUG
+#define NDEBUG
 #include <debug.h>
 #include <ksmedia.h>
 #include <mmsystem.h>
diff --git a/reactos/drivers/wdm/audio/sysaudio/sysaudio.h b/reactos/drivers/wdm/audio/sysaudio/sysaudio.h
index 6e0d4e9aff4..47f3007e19f 100644
--- a/reactos/drivers/wdm/audio/sysaudio/sysaudio.h
+++ b/reactos/drivers/wdm/audio/sysaudio/sysaudio.h
@@ -7,7 +7,7 @@
 #include <ks.h>
 #include <ksmedia.h>
 #include <math.h>
-#define YDEBUG
+#define NDEBUG
 #include <debug.h>
 #include <stdio.h>