diff --git a/platform/chromium/managed_storage.json b/platform/chromium/managed_storage.json
index 08d531da0..a6def727c 100644
--- a/platform/chromium/managed_storage.json
+++ b/platform/chromium/managed_storage.json
@@ -1,10 +1,11 @@
 {
-    "type": "object",
-    "properties": {
-        "adminSettings": {
-            "title": "A valid JSON string compliant with uBO's backup format.",
-            "description": "All entries present will overwrite local settings.",
-            "type": "string"
-        }
+  "$schema": "http://json-schema.org/draft-03/schema",
+  "type": "object",
+  "properties": {
+    "adminSettings": {
+      "title": "A valid JSON string compliant with uBO's backup format.",
+      "description": "All entries present will overwrite local settings.",
+      "type": "string"
     }
+  }
 }