diff --git a/package.json b/package.json
index c825f2c..2dc7573 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "schema-to-erd",
-  "version": "2.0.3",
+  "version": "2.0.4",
   "description": "Generate ERD UML file from Schema DDL file",
   "main": "dist/cjs/index.js",
   "module": "dist/esm/index.js",
diff --git a/src/parse_ddl.ts b/src/parse_ddl.ts
index ef81d8b..a2da1bd 100644
--- a/src/parse_ddl.ts
+++ b/src/parse_ddl.ts
@@ -2,7 +2,7 @@ import { Parser } from 'sql-ddl-to-json-schema';
 import assert from 'assert';
 import { JSONSchema7 } from 'json-schema';
 import config from './unparsable.config';
-import { parseDdlType } from './index.d';
+import { parseDdlType } from './types';
 
 const parser = new Parser('mysql');
 
diff --git a/src/plantuml_table.ts b/src/plantuml_table.ts
index c26c1e4..fae779c 100644
--- a/src/plantuml_table.ts
+++ b/src/plantuml_table.ts
@@ -1,4 +1,4 @@
-import { parseDdlType } from './index.d';
+import { parseDdlType } from './types';
 
 function generateEntity(
   tableName: string,
diff --git a/src/schema_to_erd.ts b/src/schema_to_erd.ts
index 73e14e5..600ef89 100644
--- a/src/schema_to_erd.ts
+++ b/src/schema_to_erd.ts
@@ -3,7 +3,7 @@ import path from 'path';
 import { PathLike } from 'node:fs';
 import parseDdl from './parse_ddl';
 import generatePlantUml from './plantuml_table';
-import { parseDdlType, pumlOutputType } from './index.d';
+import { parseDdlType, pumlOutputType } from './types';
 
 export default async function schemaToErd(
   schemaFilePath: PathLike,
diff --git a/src/index.d.ts b/src/types.d.ts
similarity index 100%
rename from src/index.d.ts
rename to src/types.d.ts