diff --git a/datasource.yml b/datasource.yml
index f9c31edfbe15c1beeee181f271f6624e7706e936..782d766a00b6b4ff50db06d0708a22496fbbb16e 100644
--- a/datasource.yml
+++ b/datasource.yml
@@ -4,4 +4,4 @@ datasources:
   - name: Prometheus
     type: prometheus
     access: proxy
-    url: prometheus:9090
\ No newline at end of file
+    url: http://prometheus:9090
\ No newline at end of file