diff --git a/src/preload/index.ts b/src/preload/index.ts
index 2c20f1ed57..af4803fd50 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -18,6 +18,7 @@ import {
   MemoryListOptions,
   MemorySearchOptions,
   OcrProvider,
+  OcrResult,
   Provider,
   S3Config,
   Shortcut,
@@ -410,7 +411,8 @@ const api = {
     ) => ipcRenderer.invoke(IpcChannel.CodeTools_Run, cliTool, model, directory, env, options)
   },
   ocr: {
-    ocr: (file: SupportedOcrFile, provider: OcrProvider) => ipcRenderer.invoke(IpcChannel.OCR_ocr, file, provider)
+    ocr: (file: SupportedOcrFile, provider: OcrProvider): Promise<OcrResult> =>
+      ipcRenderer.invoke(IpcChannel.OCR_ocr, file, provider)
   }
 }