diff --git a/public/app/plugins/datasource/prometheus/plugin.json b/public/app/plugins/datasource/prometheus/plugin.json
index 66dd9145e6a..1b9d569f6df 100644
--- a/public/app/plugins/datasource/prometheus/plugin.json
+++ b/public/app/plugins/datasource/prometheus/plugin.json
@@ -4,5 +4,6 @@
   "id": "prometheus",
 
   "metrics": true,
-  "annotations": true
+  "annotations": true,
+  "defaultMatchFormat": "pipe"
 }