diff --git a/iron-gcd/Cargo.lock b/iron-gcd/Cargo.lock
index 38cf894..14a51b3 100644
--- a/iron-gcd/Cargo.lock
+++ b/iron-gcd/Cargo.lock
@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "base64"
 version = "0.6.0"