diff --git a/dlls/msacm/msacm_main.c b/dlls/msacm/msacm_main.c
index 01bfa75..53b17e1 100644
--- a/dlls/msacm/msacm_main.c
+++ b/dlls/msacm/msacm_main.c
@@ -24,6 +24,7 @@
 #include "winbase.h"
 #include "winerror.h"
 #include "mmsystem.h"
+#define NOBITMAP
 #include "mmreg.h"
 #include "msacm.h"
 #include "msacmdrv.h"
@@ -459,5 +460,3 @@
  * FIXME
  *   No documentation found.
  */
-
-