diff --git a/templates/_statefulset.tpl b/templates/_statefulset.tpl
index 6992bcb..c0f9add 100644
--- a/templates/_statefulset.tpl
+++ b/templates/_statefulset.tpl
@@ -51,7 +51,7 @@ spec:
           {{- end -}}
           {{- end }}
           env:
-            {{- include "lib.environmentVariables" . | default "{}" | nindent 12 }}
+            {{- include "lib.environmentVariables" . | default "[]" | nindent 12 }}
           livenessProbe:
             {{- toYaml .Values.livenessProbe | nindent 12 }}
           readinessProbe: