diff --git a/proxy/script/conntrack.pl b/proxy/script/conntrack.pl
index 9dfc686..bee2fbe 100755
--- a/proxy/script/conntrack.pl
+++ b/proxy/script/conntrack.pl
@@ -173,9 +173,10 @@ sub conntrack {
 			$sem2->up();
 			print "Invio query UPDATE\n" if ($verbose > 1);
 		}
-		return if ($conta >= $limit_thread);
+		last if ($conta >= $limit_thread);
 	}
 	close CT;
+	return;
 }
 
 sub database {