diff --git a/postgresql/templates/statefulset.yaml b/postgresql/templates/statefulset.yaml
index f1cc90f4c11f23bfdae13d362d6e23c042efadf8..55bc74fb9a5e5f29571fc61e616d5c101c2858f5 100644
--- a/postgresql/templates/statefulset.yaml
+++ b/postgresql/templates/statefulset.yaml
@@ -79,7 +79,7 @@ spec:
           volumeMounts:
             - mountPath: "/var/lib/postgresql/data"
               name: data
-              subPath: {{ .Chart.AppVersion }}
+              subPath: "{{ .Chart.AppVersion }}"
             - mountPath: "/configs"
               name: config
             - mountPath: "/dev/shm"