diff --git a/package.json b/package.json
index 3fcf400833..f7a6119bc5 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "main": "dist/o-spreadsheet.cjs.js",
   "browser": "dist/o-spreadsheet.iife.js",
   "module": "dist/o-spreadsheet.es.js",
-  "types": "dist/o_spreadsheet.d.ts",
+  "types": "dist/o-spreadsheet.d.ts",
   "files": [
     "dist/*.js",
     "dist/*.d.ts"
diff --git a/rollup.config.js b/rollup.config.js
index 82d7e137e3..c31019f583 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -25,7 +25,7 @@ __info__.hash = '${commitHash}';
  */
 function getConfigForFormat(format, minified = false) {
   return {
-    file: minified ? `dist/o_spreadsheet.${format}.min.js` : `dist/o_spreadsheet.${format}.js`,
+    file: minified ? `dist/o-spreadsheet.${format}.min.js` : `dist/o-spreadsheet.${format}.js`,
     format,
     name: "o_spreadsheet",
     extend: true,
@@ -78,7 +78,7 @@ export default (commandLineArgs) => {
       },
       {
         input: "dist/types/index.d.ts",
-        output: [{ file: "dist/o_spreadsheet.d.ts", format: "es" }],
+        output: [{ file: "dist/o-spreadsheet.d.ts", format: "es" }],
         plugins: [dts(), nodeResolve()],
       },
     ];