diff --git a/nameserv.c b/nameserv.c
index e57a610..f509dfb 100644
--- a/nameserv.c
+++ b/nameserv.c
@@ -39,7 +39,7 @@ unsigned long
 DNS_Name2IPAddress(const char *name)
 {
   struct hostent *host;
-  char *address0;
+  unsigned char *address0;
   unsigned long result;
 
   host = gethostbyname(name);