diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index 4c0bdc741c0..54f5afb35b0 100644
--- a/dlls/d3dx8/math.c
+++ b/dlls/d3dx8/math.c
@@ -28,7 +28,7 @@
 
 #include "wine/debug.h"
 
-WINE_DEFAULT_DEBUG_CHANNEL(d3dx8);
+WINE_DEFAULT_DEBUG_CHANNEL(d3dx);
 
 static const ID3DXMatrixStackVtbl ID3DXMatrixStack_Vtbl;