diff --git a/peekaping.yaml b/peekaping.yaml
index ab70ce2..89a1783 100644
--- a/peekaping.yaml
+++ b/peekaping.yaml
@@ -34,7 +34,7 @@ services:
       - SERVER_PORT=8034
       - SERVER_HOST=0.0.0.0
     depends_on:
-      peekaping-postgres
+      - peekaping-postgres
 
     deploy:
       restart_policy: