diff --git a/charts/fluentd/templates/logger-fluentd-daemon.yaml b/charts/fluentd/templates/logger-fluentd-daemon.yaml
index a0bad20..924852e 100644
--- a/charts/fluentd/templates/logger-fluentd-daemon.yaml
+++ b/charts/fluentd/templates/logger-fluentd-daemon.yaml
@@ -42,7 +42,7 @@ spec:
           {{- end}}
           {{- range $key, $value := .Values.daemon_environment }}
           - name: {{ $key }}
-            value: {{ $value }}
+            value: {{ $value | quote }}
           {{- end }}
         volumeMounts:
         - name: varlog