diff --git a/classes/Tools/Video/Driver/Mux/MuxTool.php b/classes/Tools/Video/Driver/Mux/MuxTool.php
index 16b070f9..14120690 100755
--- a/classes/Tools/Video/Driver/Mux/MuxTool.php
+++ b/classes/Tools/Video/Driver/Mux/MuxTool.php
@@ -205,7 +205,7 @@ protected function initBlocks()
             ] );
         } );
         add_filter(
-            'block_categories',
+            'block_categories_all',
             function ( $categories, $post ) {
             foreach ( $categories as $category ) {
                 if ( $category['slug'] === 'mediacloud' ) {
@@ -525,4 +525,4 @@ public function deleteAttachment( $id )
         return $id;
     }
 
-}
\ No newline at end of file
+}