diff --git a/bridges/TagBoardBridge b/bridges/TagBoardBridge.php
similarity index 97%
rename from bridges/TagBoardBridge
rename to bridges/TagBoardBridge.php
index 57cc8f25..2b9abcee 100644
--- a/bridges/TagBoardBridge
+++ b/bridges/TagBoardBridge.php
@@ -44,7 +44,7 @@ class TagBoardBridge extends BridgeAbstract{
     }
 
     public function getCacheDuration(){
-        return 0; // 6 hours 21600
+        return 21600; // 6 hours
     }
 }