diff --git a/app/main.ts b/app/main.ts
index b2cf69d52e..b3f8350004 100644
--- a/app/main.ts
+++ b/app/main.ts
@@ -3054,6 +3054,9 @@ ipc.handle('show-save-dialog', async (_event, { defaultPath }) => {
 
   // On Windows, if you change the path from the default, the extension is
   // removed. We want to make sure the extension is always there.
+  if (extname(selectedFilePath) !== '') {
+    return { canceled: false, filePath: selectedFilePath };
+  }
   const defaultExt = extname(defaultPath);
   const finalDirname = dirname(selectedFilePath);
   const finalBasename = basename(selectedFilePath, defaultExt);