diff --git a/ratelimitfile.php b/ratelimitfile.php
index f8469bc..9393510 100644
--- a/ratelimitfile.php
+++ b/ratelimitfile.php
@@ -22,7 +22,7 @@ class ratelimitfile extends ratelimit
   public function set ($name)
   {
     $this->storageOK();
-    $nameFile = rawurlencode ($name);
+    $nameFile = substr (rawurlencode ($name), 0, 128);
     $file = $this->storageDir."/$nameFile";
     // Add the current timestamp
     $currentTimeStamp = microtime (true)."\n";
@@ -71,7 +71,7 @@ class ratelimitfile extends ratelimit
   public function del ($name)
   {
     $this->storageOK();
-    $nameFile = rawurlencode ($name);
+    $nameFile = substr (rawurlencode ($name), 0, 128);
     $file = $this->storageDir."/$nameFile";
     if (file_exists ($file))
     {