diff --git a/src/core/ngx_config.h b/src/core/ngx_config.h
index 63a42ef..f23176d 100644
--- a/src/core/ngx_config.h
+++ b/src/core/ngx_config.h
@@ -1,3 +1,9 @@
+
+/*
+ * Copyright (C) 2002-2004 Igor Sysoev
+ */
+
+
 #ifndef _NGX_CONFIG_H_INCLUDED_
 #define _NGX_CONFIG_H_INCLUDED_
 
@@ -116,5 +122,10 @@
 #define INET_ADDRSTRLEN  16
 #endif
 
+#define NGX_MAXHOSTNAMELEN 64
+/*
+#define NGX_MAXHOSTNAMELEN MAXHOSTNAMELEN
+*/
+
 
 #endif /* _NGX_CONFIG_H_INCLUDED_ */