diff --git a/include/prototypes.h b/include/prototypes.h
index 16b41f6d..3e46c605 100644
--- a/include/prototypes.h
+++ b/include/prototypes.h
@@ -508,7 +508,6 @@ extern int off_support(coord, coord, natid, natid);
 extern int def_support(coord, coord, natid, natid);
 extern int oprange(struct genitem *, int, int *);
 extern int cando(int, int);
-extern s_char *mission_short_name(int);
 extern void show_mission(int, struct nstr_item *);
 extern int air_defense(coord, coord, natid, struct emp_qelem *,
 		       struct emp_qelem *);
diff --git a/src/lib/subs/mission.c b/src/lib/subs/mission.c
index 8b8b3c11..f6ed2750 100644
--- a/src/lib/subs/mission.c
+++ b/src/lib/subs/mission.c
@@ -848,31 +848,6 @@ nameofitem(struct genitem *gp, int type)
     return NULL;
 }
 
-s_char *
-mission_short_name(int mission)
-{
-    switch (mission) {
-    case MI_INTERDICT:
-	return "interdict";
-    case MI_SUPPORT:
-	return "support  ";
-    case MI_OSUPPORT:
-	return "offensive";
-    case MI_DSUPPORT:
-	return "defensive";
-    case MI_RESERVE:
-	return "reserve  ";
-    case MI_ESCORT:
-	return "escort   ";
-    case MI_SINTERDICT:
-	return "interdict";
-    case MI_AIR_DEFENSE:
-	return "air def  ";
-    default:
-	return "         ";
-    }
-}
-
 s_char *
 mission_name(short int mission)
 {