diff --git a/src/codegen.ts b/src/codegen.ts
index 3326581..2985c64 100644
--- a/src/codegen.ts
+++ b/src/codegen.ts
@@ -32,7 +32,7 @@ export const codegen = (
   const ctDtsFile: ArtifactContent = {
     file: 'ct.d.ts',
     code: `${serializeMapTypes(map)}
-    \nexport const ct: <T extends keyof typeof pluginCtMap>(alias: T) => typeof pluginCtMap[T];`,
+    \nexport const ct: <T extends keyof PluginCtMapType>(alias: T) => PluginCtMapType[T];`,
   };
 
   cssFn.files.push(ctFile, ctDtsFile);
diff --git a/src/utils.ts b/src/utils.ts
index d482416..a8070bc 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -15,10 +15,10 @@ export const serializeValue = (value: any) => {
 };
 
 export const serializeMapTypes = (map: Map<any, any>) => {
-  let code = 'const pluginCtMap = {';
+  let code = 'type PluginCtMapType = {';
   for (const [key, value] of map.entries()) {
     code += `\n  '${key}': ${serializeValue(value)},`;
   }
-  code += '\n} as const;';
+  code += '\n}';
   return code;
 };