diff --git a/kubefiles/postgres-deployment.yml b/kubefiles/postgres-deployment.yml
index 76c8fea..1043bfc 100644
--- a/kubefiles/postgres-deployment.yml
+++ b/kubefiles/postgres-deployment.yml
@@ -3,6 +3,9 @@ kind: Deployment
 metadata:
   name: postgres
 spec:
+  selector:
+    matchLabels:
+      app: postgres
   replicas: 1
   template:
     metadata:
@@ -31,4 +34,4 @@ spec:
           # mapped to the PVC
         - name: postgres-pvc
           persistentVolumeClaim:
-            claimName: postgres-pvc
\ No newline at end of file
+            claimName: postgres-pvc