diff --git a/include/prototypes.h b/include/prototypes.h
index f9f869c0..ed91e7f5 100644
--- a/include/prototypes.h
+++ b/include/prototypes.h
@@ -556,7 +556,7 @@ extern int put_plane_on_ship(struct plnstr *, struct shpstr *);
 extern void pln_dropoff(struct emp_qelem *, struct ichrstr *,
 			coord, coord, void *, int);
 extern void pln_mine(struct emp_qelem *list, struct sctstr *sectp);
-extern int pln_wanted(struct plnstr *, int, int);
+extern int pln_capable(struct plnstr *, int, int);
 extern void pln_sel(struct nstr_item *, struct emp_qelem *,
 		    struct sctstr *, int, int, int, int);
 extern int pln_arm(struct emp_qelem *, int, char, struct ichrstr *,
diff --git a/src/lib/subs/mission.c b/src/lib/subs/mission.c
index 44fc6b10..408aeb33 100644
--- a/src/lib/subs/mission.c
+++ b/src/lib/subs/mission.c
@@ -946,7 +946,7 @@ mission_pln_sel(struct emp_qelem *list, int wantflags, int nowantflags,
 	    }
 	}
 
-	if (!pln_wanted(pp, wantflags, nowantflags)) {
+	if (!pln_capable(pp, wantflags, nowantflags)) {
 	    emp_remque(qp);
 	    free(qp);
 	    continue;
diff --git a/src/lib/subs/plnsub.c b/src/lib/subs/plnsub.c
index 50a2092a..f0a8670d 100644
--- a/src/lib/subs/plnsub.c
+++ b/src/lib/subs/plnsub.c
@@ -352,15 +352,15 @@ pln_mine(struct emp_qelem *list, struct sctstr *sectp)
 }
 
 /*
- * Is a plane of PP's type wanted?
- * A plane type is wanted unless
- * - it lacks all of the P_F, P_ESC in wantflags, or
- * - it lacks all of the P_E, P_L, P_K in wantflags, or
- * - it lacks any of the other flags in wantflags, or
- * - it has any of the flags in nowantflags.
+ * Has PP's type capabilities satisfying WANTFLAGS and NOWANTFLAGS?
+ * A plane type is capable unless
+ * - it lacks all of the P_F, P_ESC in WANTFLAGS, or
+ * - it lacks all of the P_E, P_L, P_K in WANTFLAGS, or
+ * - it lacks any of the other capabilities in WANTFLAGS, or
+ * - it has any of the capabilities in NOWANTFLAGS.
  */
 int
-pln_wanted(struct plnstr *pp, int wantflags, int nowantflags)
+pln_capable(struct plnstr *pp, int wantflags, int nowantflags)
 {
     int flags = plchr[(int)pp->pln_type].pl_flags;
 
@@ -427,7 +427,7 @@ pln_sel(struct nstr_item *ni, struct emp_qelem *list, struct sctstr *ap,
 	range += ap_to_target;
 	range *= rangemult;
 	pcp = &plchr[(int)plane.pln_type];
-	if (!pln_wanted(&plane, wantflags, nowantflags))
+	if (!pln_capable(&plane, wantflags, nowantflags))
 	    continue;
 	if (plane.pln_range < range) {
 	    pr("%s out of range (%d:%d)\n",