diff --git a/packages/taro-cli/src/util/defineConfig.ts b/packages/taro-cli/src/util/defineConfig.ts
index 8dc0af9f4e20..f4cd61a7bf7e 100644
--- a/packages/taro-cli/src/util/defineConfig.ts
+++ b/packages/taro-cli/src/util/defineConfig.ts
@@ -9,7 +9,7 @@ export interface ConfigEnv {
   mode: string
 }
 
-export type UserConfigFn = (mergin: WebpackMerge, env: ConfigEnv) => IProjectConfig | Promise<IProjectConfig>
+export type UserConfigFn = (merge: WebpackMerge, env: ConfigEnv) => IProjectConfig | Promise<IProjectConfig>
 export type UserConfigExport = IProjectConfig | Promise<IProjectConfig> | UserConfigFn
 
 /**