diff --git a/sys/cddl/compat/opensolaris/sys/misc.h b/sys/cddl/compat/opensolaris/sys/misc.h
index 0343f2f959b..20d335b0674 100644
--- a/sys/cddl/compat/opensolaris/sys/misc.h
+++ b/sys/cddl/compat/opensolaris/sys/misc.h
@@ -46,6 +46,7 @@
 #ifdef _KERNEL
 struct opensolaris_utsname {
 	char *nodename;
+	char *sysname;
 };
 
 extern char hw_serial[11];