diff --git a/src/helpers/create_index.js b/src/helpers/create_index.js
index 2ffd46d..acf1b0f 100644
--- a/src/helpers/create_index.js
+++ b/src/helpers/create_index.js
@@ -3,14 +3,20 @@ var schema = {
   priority: { type: 'short' },
   timeout: { type: 'long' },
   process_expiration: { type: 'date' },
+  created_by: { type: 'string', index: 'not_analyzed' },
   created_at: { type: 'date' },
   started_at: { type: 'date' },
   completed_at: { type: 'date' },
   attempts: { type: 'short' },
   max_attempts: { type: 'short' },
   status: { type: 'keyword' },
-  output_content_type: { type: 'string', index: 'not_analyzed' },
-  output: { type: 'object', enabled: false }
+  output: {
+    type: 'object',
+    properties: {
+      content_type: { type: 'string', index: 'not_analyzed' },
+      content: { type: 'object', enabled: false }
+    }
+  }
 };
 
 export default function createIndex(client, indexName) {