diff --git a/packages/amis-ui/src/components/PdfViewer.tsx b/packages/amis-ui/src/components/PdfViewer.tsx
index 36544d785..85d99d78a 100644
--- a/packages/amis-ui/src/components/PdfViewer.tsx
+++ b/packages/amis-ui/src/components/PdfViewer.tsx
@@ -11,7 +11,6 @@ import {Document, Page, pdfjs} from 'react-pdf';
 import {Icon} from './icons';
 import Input from './Input';
 import Spinner from './Spinner';
-// @ts-ignore
 import pdfJSWorkerURL from 'pdfjs-dist/build/pdf.worker.min';
 pdfjs.GlobalWorkerOptions.workerSrc = pdfJSWorkerURL;
 
diff --git a/types/pdfjs-dist/index.d.ts b/types/pdfjs-dist/index.d.ts
new file mode 100644
index 000000000..23954727e
--- /dev/null
+++ b/types/pdfjs-dist/index.d.ts
@@ -0,0 +1 @@
+declare module 'pdfjs-dist/build/pdf.worker.min';