diff --git a/src/lib/subs/plnsub.c b/src/lib/subs/plnsub.c
index 9140a656..6c3b31b9 100644
--- a/src/lib/subs/plnsub.c
+++ b/src/lib/subs/plnsub.c
@@ -961,7 +961,7 @@ put_plane_on_land(struct plnstr *plane, struct lndstr *land)
 void
 take_plane_off_land(struct plnstr *plane, struct lndstr *land)
 {
-    if (CANT_HAPPEN(plane->pln_ship != land->lnd_uid))
+    if (CANT_HAPPEN(plane->pln_land != land->lnd_uid))
 	return;
 
     fit_plane_off_land(plane, land);