1 files changed, 1 insertions, 1 deletions
diff --git a/random.c b/random.c
index 2c57ffc074..49d0a7525f 100644
--- a/random.c
+++ b/random.c
@@ -1066,7 +1066,7 @@ random_rand(int argc, VALUE *argv, VALUE obj)
     }
     else {
 	v = Qnil;
-	NUM2LONG(vmax);
+	(void)NUM2LONG(vmax);
     }
     if (NIL_P(v)) {
 	VALUE mesg = rb_str_new_cstr("invalid argument - ");