diff --git a/src/cli/plugins-install-record-commit.ts b/src/cli/plugins-install-record-commit.ts
index 468017eb63d..e8ff0172399 100644
--- a/src/cli/plugins-install-record-commit.ts
+++ b/src/cli/plugins-install-record-commit.ts
@@ -207,7 +207,7 @@ export async function mutateConfigWithPendingPluginInstalls<T = void>(
   return await transformConfigWithPendingPluginInstalls<T>({
     ...params,
     transform: async (currentConfig, context): Promise<ConfigTransformResult<T>> => {
-      const draft = structuredClone(currentConfig) as OpenClawConfig;
+      const draft = structuredClone(currentConfig);
       const result = (await params.mutate(draft, context)) as T | undefined;
       return { nextConfig: draft, result };
     },
diff --git a/src/config/mutate.ts b/src/config/mutate.ts
index cba2223ee4b..ce2019d1139 100644
--- a/src/config/mutate.ts
+++ b/src/config/mutate.ts
@@ -491,7 +491,7 @@ export async function mutateConfigFile<T = void>(params: {
     writeOptions: params.writeOptions,
     io: params.io,
     transform: async (currentConfig, context) => {
-      const draft = structuredClone(currentConfig) as OpenClawConfig;
+      const draft = structuredClone(currentConfig);
       const result = (await params.mutate(draft, context)) as T | undefined;
       return { nextConfig: draft, result };
     },
@@ -515,7 +515,7 @@ export async function mutateConfigFileWithRetry<T = void>(params: {
     writeOptions: params.writeOptions,
     io: params.io,
     transform: async (currentConfig, context) => {
-      const draft = structuredClone(currentConfig) as OpenClawConfig;
+      const draft = structuredClone(currentConfig);
       const result = (await params.mutate(draft, context)) as T | undefined;
       return { nextConfig: draft, result };
     },