diff --git a/includes/css-cache.inc b/includes/css-cache.inc
index d88160b..607b886 100644
--- a/includes/css-cache.inc
+++ b/includes/css-cache.inc
@@ -10,6 +10,12 @@ class CToolsCssCache implements DrupalCacheInterface {
   /**
    * {@inheritdoc}
    */
+  function __construct($bin) {
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function clear($cid = NULL, $wildcard = FALSE) {
     // Only clear the caches if the wildcard is set, this ensures that the cache
     // is only cleared when the full caches are cleared manually (eg by invoking