diff --git a/auto/lib/zlib/make b/auto/lib/zlib/make
index d256425..0ced9a2 100644
--- a/auto/lib/zlib/make
+++ b/auto/lib/zlib/make
@@ -1,4 +1,7 @@
 
+# Copyright (C) Igor Sysoev
+
+
 case "$CC" in
 
     cl)