1 files changed, 2 insertions, 2 deletions
diff --git a/bignum.c b/bignum.c
index 9966b64aa0..9d09098f29 100644
--- a/bignum.c
+++ b/bignum.c
@@ -3674,8 +3674,8 @@ rb_big_coerce(VALUE x, VALUE y)
 	rb_raise(rb_eTypeError, "can't coerce %s to Bignum",
 		 rb_obj_classname(y));
     }
-    /* not reached */
-    return Qnil;
+
+    UNREACHABLE;
 }
 
 /*