diff --git a/helm/templates/deployment.yaml b/helm/templates/deployment.yaml
index b0262f7..0c07141 100644
--- a/helm/templates/deployment.yaml
+++ b/helm/templates/deployment.yaml
@@ -91,7 +91,7 @@ spec:
             - name: REQUESTS_CA_BUNDLE
               value: {{ printf "%s/%s" .Values.ca.path .Values.ca.key | quote }}
             - name: NODE_EXTRA_CA_CERTS
-              value: {{ printf "[%s/%s]" .Values.ca.path .Values.ca.key | quote }}
+              value: {{ printf "%s/%s" .Values.ca.path .Values.ca.key | quote }}
             {{- end }}
             {{- if .Values.extraEnvVars }}
             {{- toYaml .Values.extraEnvVars | nindent 12 }}