diff --git a/src/core/ngx_sha1.h b/src/core/ngx_sha1.h
index f158fd4..81c909e 100644
--- a/src/core/ngx_sha1.h
+++ b/src/core/ngx_sha1.h
@@ -1,6 +1,7 @@
 
 /*
  * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
  */