diff --git a/src/bundle/Resources/public/js/scripts/admin.content.tree.js b/src/bundle/Resources/public/js/scripts/admin.content.tree.js
index 518817022a..b91203580b 100644
--- a/src/bundle/Resources/public/js/scripts/admin.content.tree.js
+++ b/src/bundle/Resources/public/js/scripts/admin.content.tree.js
@@ -51,7 +51,7 @@
         React.createElement(eZ.modules.ContentTree, {
             userId,
             currentLocationPath,
-            rootLocationId: treeRootLocationId,
+            rootLocationId: parseInt(treeRootLocationId, 10),
             restInfo: { token, siteaccess },
         }),
         contentTreeWrapper