diff --git a/src/include/sound_server.h b/src/include/sound_server.h
index 56b3c6e11..d9324cc83 100644
--- a/src/include/sound_server.h
+++ b/src/include/sound_server.h
@@ -46,6 +46,10 @@ extern sem_t SoundThreadChannelSemaphore;
 #include "libcda.h"
 #endif
 
+#ifdef USE_SDLCD
+#include <SDL.h>
+#endif
+
 /*----------------------------------------------------------------------------
 --	Definitons
 ----------------------------------------------------------------------------*/
@@ -224,11 +228,16 @@ extern char *CDMode;
     /// FIXME: docu
 extern int CDTrack;
 #endif
+
 #ifdef USE_LIBCDA
     /// number of tracks on the cd
 extern int NumCDTracks;
 #endif
 
+#ifdef USE_SDLCD
+extern SDL_CD *CDRom;                   /// SDL cdrom device
+#endif
+
 /*----------------------------------------------------------------------------
 --	Functions
 ----------------------------------------------------------------------------*/