diff --git a/src/CacheEntry.php b/src/CacheEntry.php
index 127c1c6e..f1fa7bfd 100644
--- a/src/CacheEntry.php
+++ b/src/CacheEntry.php
@@ -166,7 +166,7 @@ public function __sleep()
     public function __wakeup()
     {
         if ($this->response !== null) {
-            $stream = fopen('php://memory','r+');
+            $stream = fopen('php://memory', 'r+');
             fwrite($stream, $this->responseBody);
             rewind($stream);