diff --git a/src/sound/backend/i_sound.h b/src/sound/backend/i_sound.h
index 4346118f76..6323e361db 100644
--- a/src/sound/backend/i_sound.h
+++ b/src/sound/backend/i_sound.h
@@ -35,7 +35,6 @@
 #ifndef __I_SOUND__
 #define __I_SOUND__
 
-#include "doomtype.h"
 #include "i_soundinternal.h"
 
 class FileReader;