diff --git a/src/commands/updates/browser.ts b/src/commands/updates/browser.ts
index 51c1a29..2893661 100644
--- a/src/commands/updates/browser.ts
+++ b/src/commands/updates/browser.ts
@@ -71,7 +71,7 @@ function getReleaseMarName(releaseInfo: ReleaseInfo): string | undefined {
   }
   if ((process as any).surferPlatform == 'darwin') {
     if (compatMode == 'x86_64') {
-      releaseMarName = 'macos-x86_64.mar'
+      releaseMarName = 'macos-x64.mar'
     }
     else if (compatMode == 'aarch64') {
       releaseMarName = 'macos-aarch64.mar'