diff --git a/ui/curses.c b/ui/curses.c
index a6e260eb96..ec281125ac 100644
--- a/ui/curses.c
+++ b/ui/curses.c
@@ -225,6 +225,8 @@ static wint_t console_getch(enum maybe_keycode *maybe_keycode)
     case ERR:
         ret = -1;
         break;
+    default:
+        abort();
     }
     return ret;
 }