diff --git a/config/manager/deployment.yaml b/config/manager/deployment.yaml
index e64d3de9..4c7df130 100644
--- a/config/manager/deployment.yaml
+++ b/config/manager/deployment.yaml
@@ -38,6 +38,7 @@ spec:
         ports:
           - containerPort: 8080
             name: http-prom
+            protocol: TCP
           - containerPort: 9440
             name: healthz
             protocol: TCP