diff --git a/share/examples/kld/khelp/h_example.c b/share/examples/kld/khelp/h_example.c
--- a/share/examples/kld/khelp/h_example.c
+++ b/share/examples/kld/khelp/h_example.c
@@ -44,7 +44,8 @@
 #include <sys/module_khelp.h>
 #include <sys/socket.h>
 #include <sys/socketvar.h>
-
+#include <netinet/in.h>
+#include <netinet/in_pcb.h>
 #include <netinet/tcp_var.h>
 
 #include <vm/uma.h>