diff --git a/chart/sonarr/templates/statefulset.yaml b/chart/sonarr/templates/statefulset.yaml
index f21c6f4..2d7d3d7 100644
--- a/chart/sonarr/templates/statefulset.yaml
+++ b/chart/sonarr/templates/statefulset.yaml
@@ -32,7 +32,7 @@ spec:
           protocol: TCP
         env:
           - name: PORT
-            value: 9707
+            value: "9707"
           - name: URL
             value: "http://127.0.0.1:8989"
       - name: {{ .Chart.Name }}