diff --git a/sysdep/unix/krt.h b/sysdep/unix/krt.h
index 089c97ad..39e16a2a 100644
--- a/sysdep/unix/krt.h
+++ b/sysdep/unix/krt.h
@@ -15,6 +15,7 @@ struct krt_proto;
 struct kif_config;
 struct kif_proto;
 
+#include "nest/iface.h"
 #include "sysdep/config.h"
 #include CONFIG_INCLUDE_KRTSYS_H