diff --git a/sys/sys/ktrace.h b/sys/sys/ktrace.h
--- a/sys/sys/ktrace.h
+++ b/sys/sys/ktrace.h
@@ -36,6 +36,7 @@
 #include <sys/caprights.h>
 #include <sys/signal.h>
 #include <sys/socket.h>
+#include <netlink/netlink.h>
 #include <sys/_uio.h>
 
 /*
diff --git a/usr.bin/kdump/kdump.c b/usr.bin/kdump/kdump.c
--- a/usr.bin/kdump/kdump.c
+++ b/usr.bin/kdump/kdump.c
@@ -1918,6 +1918,15 @@
 		printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
 		break;
 	}
+	case AF_NETLINK: {
+		struct sockaddr_nl sa_nl;
+
+		memset(&sa_nl, 0, sizeof(sa_nl));
+		memcpy(&sa_nl, sa, sa->sa_len);
+		printf("len: %u, pid: %u, netlink family: %u, groups: 0x%x",
+		    sa_nl.nl_len, sa_nl.nl_pid, sa_nl.nl_family, sa_nl.nl_groups);
+		break;
+	}
 	default:
 		printf("unknown address family");
 	}