diff --git a/src/datastore/DataStoreProvider.ts b/src/datastore/DataStoreProvider.ts
index be25153..38004bf 100644
--- a/src/datastore/DataStoreProvider.ts
+++ b/src/datastore/DataStoreProvider.ts
@@ -2,6 +2,8 @@
  * Created by kasra on 27/06/17.
  */
 
+import ApiStatusCodes from '../api/ApiStatusCodes'
+import CaptainConstants from '../utils/CaptainConstants'
 import DataStore from './DataStore'
 
 const dataStoreCache: IHashMapGeneric<DataStore> = {}
@@ -12,6 +14,13 @@ export default {
             throw new Error('NameSpace is empty')
         }
 
+        if (namespace !== CaptainConstants.rootNameSpace) {
+            throw ApiStatusCodes.createError(
+                ApiStatusCodes.STATUS_ERROR_GENERIC,
+                'Namespace unknown'
+            )
+        }
+
         if (!dataStoreCache[namespace]) {
             dataStoreCache[namespace] = new DataStore(namespace)
         }