diff --git a/charts/kyverno/templates/configmap.yaml b/charts/kyverno/templates/configmap.yaml
index 53e23a3e73..d9e1728774 100644
--- a/charts/kyverno/templates/configmap.yaml
+++ b/charts/kyverno/templates/configmap.yaml
@@ -12,10 +12,10 @@ data:
   resourceFilters: {{ join "" .Values.config.resourceFilters | quote }}
   {{- end -}}
   {{- if .Values.config.excludeGroupRole }}
-  excludeGroupRole: {{ join "" .Values.config.excludeGroupRole | quote }}
+  excludeGroupRole: {{ join "," .Values.config.excludeGroupRole | quote }}
   {{- end -}}
   {{- if .Values.config.excludeUsername }}
-  excludeUsername: {{ join "" .Values.config.excludeUsername | quote }}
+  excludeUsername: {{ join "," .Values.config.excludeUsername | quote }}
   {{- end -}}
   {{- if .Values.config.webhooks }}
   webhooks: {{ .Values.config.webhooks  | toJson | quote }}