diff --git a/charts/mqtt/templates/deployment.yaml b/charts/mqtt/templates/deployment.yaml
index 9a8142a..b13b360 100644
--- a/charts/mqtt/templates/deployment.yaml
+++ b/charts/mqtt/templates/deployment.yaml
@@ -13,7 +13,7 @@ spec:
   template:
     metadata:
       annotations:
-        checksum/config: {{ include (print $.Template.BasePath "configmap.yaml") . | sha256sum }}
+        checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
       {{- with .Values.podAnnotations }}
         {{- toYaml . | nindent 8 }}
       {{- end }}