diff --git a/src/index.ts b/src/index.ts
index ebe4a71..cef9b58 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -115,6 +115,11 @@ export const makeUniversalApp = async (opts: MakeUniversalOpts): Promise<void> =
       const arm64Sha = await sha(path.resolve(opts.arm64AppPath, file.relativePath));
       if (x64Sha !== arm64Sha) {
         d('SHA for file', file.relativePath, `does not match across builds ${x64Sha}!=${arm64Sha}`);
+        // The MainMenu.nib files generated by Xcode13 are deterministic in effect but not deterministic in generated sequence
+        if (path.basename(path.dirname(file.relativePath)) === 'MainMenu.nib') {
+          // The mismatch here is OK so we just move on to the next one
+          continue;
+        }
         throw new Error(
           `Expected all non-binary files to have identical SHAs when creating a universal build but "${file.relativePath}" did not`,
         );