diff --git a/declaration.d.ts b/src/declaration.d.ts
similarity index 100%
rename from declaration.d.ts
rename to src/declaration.d.ts
diff --git a/tsconfig.json b/tsconfig.json
index 3137818..bbf4960 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -68,7 +68,6 @@
   },
   "include": [
     "src/**/*",
-    "./declaration.d.ts",
     "./node_modules/@kintone/dts-gen/kintone.d.ts"
   ]
 }