diff --git a/xhost.c b/xhost.c
index a67d136..c5d25f4 100644
--- a/xhost.c
+++ b/xhost.c
@@ -77,6 +77,7 @@ X Window System is a trademark of The Open Group.
 #include <X11/Xauth.h>
 #include <X11/Xmu/Error.h>
 #include <stdlib.h>
+#include <netdb.h>
 
 #ifdef NEEDSOCKETS
 #ifdef WIN32