diff --git a/sc2/src/sc2code/comm.c b/sc2/src/sc2code/comm.c
index 91648551d..999de4c26 100644
--- a/sc2/src/sc2code/comm.c
+++ b/sc2/src/sc2code/comm.c
@@ -104,7 +104,6 @@ enum
 };
 static int subtitle_state = DONE_SUBTITLE;
 static Mutex subtitle_mutex;
-int do_subtitles (UNICODE *pStr);
 
 static volatile UNICODE *last_subtitle;
 static TFB_Image *subtitle_cache;
diff --git a/sc2/src/sc2code/comm.h b/sc2/src/sc2code/comm.h
index 1050d98d5..9b01aa48c 100644
--- a/sc2/src/sc2code/comm.h
+++ b/sc2/src/sc2code/comm.h
@@ -19,5 +19,7 @@
 
 void init_communication (void);
 void uninit_communication (void);
+int do_subtitles (UNICODE *pStr);
+
 #endif  /* _COMM_H */
 
diff --git a/sc2/src/sc2code/libs/sound/trackplayer.c b/sc2/src/sc2code/libs/sound/trackplayer.c
index f7adb25d9..be24028be 100644
--- a/sc2/src/sc2code/libs/sound/trackplayer.c
+++ b/sc2/src/sc2code/libs/sound/trackplayer.c
@@ -18,8 +18,7 @@
 #include <ctype.h>
 #include "sound.h"
 #include "libs/sound/trackplayer.h"
-
-extern int do_subtitles (UNICODE *pStr);
+#include "comm.h"
 
 static int tct;               //total number of subtitle tracks
 static int tcur;              //currently playing subtitle track
diff --git a/sc2/src/sc2code/utils.c b/sc2/src/sc2code/utils.c
index e116c614e..fdad6ee12 100644
--- a/sc2/src/sc2code/utils.c
+++ b/sc2/src/sc2code/utils.c
@@ -18,6 +18,7 @@
 
 #include "starcon.h"
 #include "commglue.h"
+#include "comm.h"
 #include "libs/sound/trackplayer.h"
 
 void
@@ -144,7 +145,6 @@ PauseGame (void)
 	CONTEXT OldContext;
 	FRAME F;
 	HOT_SPOT OldHot;
-	extern int do_subtitles (UNICODE *pStr);
 
 	if (ActivityFrame == 0
 			|| (GLOBAL (CurrentActivity) & (CHECK_ABORT | CHECK_PAUSE))