diff --git a/lib/db/caches.php b/lib/db/caches.php
index f5bbb401b6f..6dbdc1e2fba 100644
--- a/lib/db/caches.php
+++ b/lib/db/caches.php
@@ -280,6 +280,7 @@ $definitions = array(
     // Store temporary tables information.
     'temp_tables' => array(
         'mode' => cache_store::MODE_REQUEST,
-        'simplekeys' => true
+        'simplekeys' => true,
+        'simpledata' => true
     )
 );