diff --git a/src/lib/subs/ship.c b/src/lib/subs/ship.c
index 7b257941..fe63e69b 100644
--- a/src/lib/subs/ship.c
+++ b/src/lib/subs/ship.c
@@ -56,7 +56,7 @@ shp_postread(int n, void *ptr)
 
     player->owner = (player->god || sp->shp_own == player->cnum);
 
-    if (opt_MOB_ACCESS & sp->shp_own && !update_running)
+    if (opt_MOB_ACCESS && sp->shp_own && !update_running)
 	mob_inc_ship(sp, game_tick_to_now(&sp->shp_access));
 }