diff --git a/lib/apiswagger.js b/lib/apiswagger.js
index 294c4bb..ef9c5ea 100644
--- a/lib/apiswagger.js
+++ b/lib/apiswagger.js
@@ -477,21 +477,23 @@ module.exports = (app, client) => {
             }, { asStream: true, meta: false }),
                 instancescomment = [],
                 block_count = 0,
-            pipeline = chain([
-                parser(),
-                pick({ filter: 'hits.hits' }),
-                streamArray(),
-                data => {
-                    block_count++
-                    instancescomment.push({
-                        instance: data.value._source.instance, comment: data.value._source.blocks.find(block => block.domain === clean(req.params.instance)).comment
-                    })
-                }
-            ])
+                pipeline = chain([
+                    parser(),
+                    pick({ filter: 'hits.hits' }),
+                    streamArray(),
+                    data => {
+                        block_count++
+                        instancescomment.push({
+                            instance: data.value._source.instance, comment: data.value._source.blocks.find(block => block.domain === clean(req.params.instance)).comment
+                        })
+                    }
+                ])
             result.pipe(pipeline)
-            res.json({
-                block_count,
-                instances: instancescomment
+            pipeline.on('end', () => {
+                res.json({
+                    block_count,
+                    instances: instancescomment
+                })
             })
         } else {
             res.status(404).end()