diff --git a/charts/authelia/Chart.yaml b/charts/authelia/Chart.yaml
index d7e5b1c..44abf67 100644
--- a/charts/authelia/Chart.yaml
+++ b/charts/authelia/Chart.yaml
@@ -1,6 +1,6 @@
 apiVersion: v2
 name: authelia
-version: 0.4.15
+version: 0.4.16
 kubeVersion: ">= 1.13.0-0"
 description: Authelia is a Single Sign-On Multi-Factor portal for web apps
 type: application
diff --git a/charts/authelia/templates/_helpers.tpl b/charts/authelia/templates/_helpers.tpl
index 8ee1bf3..2b9b6b0 100644
--- a/charts/authelia/templates/_helpers.tpl
+++ b/charts/authelia/templates/_helpers.tpl
@@ -5,7 +5,7 @@ Return the proper image name
     {{- $registryName := default "docker.io" .Values.image.registry -}}
     {{- $repositoryName := default "authelia/authelia" .Values.image.repository -}}
     {{- $tag := default .Chart.AppVersion .Values.image.tag | toString -}}
-    {{- if hasPrefix $tag "sha256:" }}
+    {{- if hasPrefix "sha256:" $tag }}
     {{- printf "%s/%s@%s" $registryName $repositoryName $tag -}}
     {{- else -}}
     {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}