diff --git a/browser_patches/checkout_build_archive_upload.sh b/browser_patches/checkout_build_archive_upload.sh
index 7a0c480d05..146891b4c7 100755
--- a/browser_patches/checkout_build_archive_upload.sh
+++ b/browser_patches/checkout_build_archive_upload.sh
@@ -213,7 +213,7 @@ elif [[ "$BUILD_FLAVOR" == "firefox-ubuntu-20.04" ]]; then
 elif [[ "$BUILD_FLAVOR" == "firefox-ubuntu-20.04-arm64" ]]; then
   BROWSER_NAME="firefox"
   EXTRA_BUILD_ARGS="--full"
-  EXPECTED_ARCH="arm64"
+  EXPECTED_ARCH="aarch64"
   EXPECTED_HOST_OS="Ubuntu"
   EXPECTED_HOST_OS_VERSION="20.04"
   BUILD_BLOB_NAME="firefox-ubuntu-20.04-arm64.zip"
@@ -226,7 +226,7 @@ elif [[ "$BUILD_FLAVOR" == "firefox-ubuntu-22.04" ]]; then
 elif [[ "$BUILD_FLAVOR" == "firefox-ubuntu-22.04-arm64" ]]; then
   BROWSER_NAME="firefox"
   EXTRA_BUILD_ARGS="--full"
-  EXPECTED_ARCH="arm64"
+  EXPECTED_ARCH="aarch64"
   EXPECTED_HOST_OS="Ubuntu"
   EXPECTED_HOST_OS_VERSION="22.04"
   BUILD_BLOB_NAME="firefox-ubuntu-22.04-arm64.zip"