diff --git a/include/ebtables_u.h b/include/ebtables_u.h
index 35a5bcc..f120eb8 100644
--- a/include/ebtables_u.h
+++ b/include/ebtables_u.h
@@ -24,6 +24,7 @@
 #ifndef EBTABLES_U_H
 #define EBTABLES_U_H
 #include <netinet/in.h>
+#include <linux/if.h>
 #include <linux/netfilter_bridge/ebtables.h>
 #include <linux/netfilter/x_tables.h>