diff --git a/src/options.c b/src/options.c
index 37281bb66..19b539adb 100644
--- a/src/options.c
+++ b/src/options.c
@@ -8901,7 +8901,7 @@ void
 enhance_menu_text(
     char *buf,
     size_t sz,
-    int whichpass,
+    int whichpass UNUSED,
     boolean *bool_p,
     struct allopt_t *thisopt)
 {