diff --git a/core_upload_update b/core_upload_update
index 62bfd9412f..9310fe0e03 100755
--- a/core_upload_update
+++ b/core_upload_update
@@ -74,3 +74,8 @@ core-admin new-version \
     -v ${FLAGS_version} \
     -m "${OUTPUT_DIR}/update.metadata" \
     -t ${FLAGS_track} -p $MD5SUM "${OUTPUT_DIR}/update.gz"
+
+# Copy the vagrant boxes and pre-built images over to the track mirror
+gsutil cp \
+    "gs://storage.core-os.net/coreos/amd64-generic/${FLAGS_version}/*" \
+    "gs://storage.core-os.net/coreos/amd64-generic/${FLAGS_track}/"