diff --git a/core/src/plugins/conf.sql/class.sqlConfDriver.php b/core/src/plugins/conf.sql/class.sqlConfDriver.php
index 94ecd82e37..dd25acf84e 100644
--- a/core/src/plugins/conf.sql/class.sqlConfDriver.php
+++ b/core/src/plugins/conf.sql/class.sqlConfDriver.php
@@ -416,6 +416,8 @@ public function saveRepository($repositoryObject, $update = false)
             $options = $repository_array['options'];
             if($repositoryObject->hasContentFilter()){
                 $options["content_filter"] = $repositoryObject->getContentFilter();
+            }else if(isSet($options["content_filter"])){
+                unset($options["content_filter"]);
             }
             unset($repository_array['options']);
             if (!$update) {