diff --git a/src/index.ts b/src/index.ts
index 1062c3d..e160274 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,7 +2,7 @@ import type MarkdownIt from 'markdown-it/index.js'
 import type { Renderer, Token } from 'markdown-it/index.js'
 import * as mermaidFunctions from './mermaid-parser'
 import * as platumlFunctions from './plantuml-parser'
-import type { PlantumlOptions } from './index.d'
+import type { PlantumlOptions } from './types'
 
 export default function umlPlugin(md: MarkdownIt, options: PlantumlOptions = {}) {
   platumlFunctions.default.functions.initialize(options)
diff --git a/src/mermaid-parser.ts b/src/mermaid-parser.ts
index b8f552c..d472c7f 100644
--- a/src/mermaid-parser.ts
+++ b/src/mermaid-parser.ts
@@ -1,7 +1,7 @@
 'use strict'
 
 import { getController } from './render-control'
-import type { MermaidOptions } from '.'
+import type { MermaidOptions } from './types'
 
 const functions = {
   options: {
diff --git a/src/plantuml-parser.ts b/src/plantuml-parser.ts
index 241fb4c..59867f6 100644
--- a/src/plantuml-parser.ts
+++ b/src/plantuml-parser.ts
@@ -1,7 +1,7 @@
 // Process block-level uml diagrams
 //
 'use strict'
-import type { PlantumlOptions } from './index.d'
+import type { PlantumlOptions } from './types'
 import deflate from './deflate'
 import { getController } from './render-control'
 
diff --git a/src/render-control.ts b/src/render-control.ts
index 27ff843..c2e107b 100644
--- a/src/render-control.ts
+++ b/src/render-control.ts
@@ -1,4 +1,4 @@
-import type { Framework } from './index.d'
+import type { Framework } from './types'
 
 /**
  * Render controller for other frameworks
diff --git a/src/index.d.ts b/src/types.ts
similarity index 100%
rename from src/index.d.ts
rename to src/types.ts