diff --git a/packages/desktop/electron-builder-config.ts b/packages/desktop/electron-builder-config.ts
index 2dd169c55e..c479515987 100644
--- a/packages/desktop/electron-builder-config.ts
+++ b/packages/desktop/electron-builder-config.ts
@@ -113,6 +113,7 @@ const prodConfig: Configuration = {
         timeStampServer: 'http://timestamp.sectigo.com',
         rfc3161TimeStampServer: 'http://timestamp.sectigo.com',
         sign: process.env.SIGN === 'true' ? './customSign.js' : null,
+        signExts: ['.dll'],
     },
     linux: {
         target: ['AppImage'],