diff --git a/tests/server/sws.c b/tests/server/sws.c
index 449efa96f..0d86c87e6 100644
--- a/tests/server/sws.c
+++ b/tests/server/sws.c
@@ -48,7 +48,9 @@
 /* This define is "almost" required to build on HPUX 11 */
 #include <arpa/inet.h> 
 #endif
+#ifdef HAVE_NETDB_H
 #include <netdb.h>
+#endif
 
 #include "getpart.h"