diff --git a/builtin/core/roles/kubernetes/init-kubernetes/templates/kubeadm/kubeadm-init.v1beta4 b/builtin/core/roles/kubernetes/init-kubernetes/templates/kubeadm/kubeadm-init.v1beta4
index 3d0514bd..da15281b 100644
--- a/builtin/core/roles/kubernetes/init-kubernetes/templates/kubeadm/kubeadm-init.v1beta4
+++ b/builtin/core/roles/kubernetes/init-kubernetes/templates/kubeadm/kubeadm-init.v1beta4
@@ -73,7 +73,7 @@ apiServer:
       value: /etc/kubernetes/audit/webhook.yaml
 {{- end }}
 {{- if .kubernetes.apiserver.extra_args | empty | not }}
-{{ kubeExtraArgs .kubernetes.apiserver.extra_args | toYaml | indent 4 }}
+{{ mapToNamedStringArgs .kubernetes.apiserver.extra_args | toYaml | indent 4 }}
 {{- end }}
   certSANs:
     - localhost
@@ -143,7 +143,7 @@ controllerManager:
   {{- end }}
 {{- end }}
 {{- if .kubernetes.controller_manager.extra_args }}
-{{ kubeExtraArgs .kubernetes.controller_manager.extra_args | toYaml | indent 4 }}
+{{ mapToNamedStringArgs .kubernetes.controller_manager.extra_args | toYaml | indent 4 }}
 {{- end }}
   extraVolumes:
     - name: host-time
@@ -172,7 +172,7 @@ scheduler:
   {{- end }}
 {{- end }}
 {{- if .kubernetes.scheduler.extra_args }}
-{{ kubeExtraArgs .kubernetes.scheduler.extra_args | toYaml | indent 4 }}
+{{ mapToNamedStringArgs .kubernetes.scheduler.extra_args | toYaml | indent 4 }}
 {{- end }}
 ---
 apiVersion: kubeadm.k8s.io/v1beta4
diff --git a/pkg/converter/tmpl/functions.go b/pkg/converter/tmpl/functions.go
index 767691bb..c0149be2 100644
--- a/pkg/converter/tmpl/functions.go
+++ b/pkg/converter/tmpl/functions.go
@@ -33,7 +33,7 @@ func funcMap() template.FuncMap {
 	f["fileExist"] = fileExist
 	f["unquote"] = unquote
 	f["getStringSlice"] = getStringSlice
-	f["kubeExtraArgs"] = kubeExtraArgs
+	f["mapToNamedStringArgs"] = mapToNamedStringArgs
 
 	return f
 }
@@ -143,9 +143,9 @@ func getStringSlice(d map[string][]string, key string) []string {
 	return nil
 }
 
-// kubeExtraArgs make kubeadm extra args of v1/beta4
+// mapToNamedStringArgs make kubeadm extra args of v1/beta4
 // for string/string extra argument maps, convert to structured extra arguments
-func kubeExtraArgs(input any) []map[string]string {
+func mapToNamedStringArgs(input any) []map[string]string {
 	v := reflect.ValueOf(input)
 	if v.Kind() != reflect.Map {
 		return []map[string]string{}
diff --git a/pkg/converter/tmpl/template_test.go b/pkg/converter/tmpl/template_test.go
index d54716a5..1eb3b253 100644
--- a/pkg/converter/tmpl/template_test.go
+++ b/pkg/converter/tmpl/template_test.go
@@ -264,7 +264,7 @@ func TestParseValue(t *testing.T) {
 		},
 		{
 			name:  "make kubeadm extra args from map",
-			input: "{{ kubeExtraArgs .foo | toYaml }}",
+			input: "{{ mapToNamedStringArgs .foo | toYaml }}",
 			variable: map[string]any{
 				"foo": map[string]any{
 					"foo": "bar1",