diff --git a/src/createDts.ts b/src/createDts.ts
index 02040da..35d9c64 100644
--- a/src/createDts.ts
+++ b/src/createDts.ts
@@ -16,7 +16,7 @@ export default data
 `
   } catch (e) {
     dts = `
-declare const data = never
+declare const data: never
 export default data
 `
   }