diff --git a/include/linux/mlx4/qp.h b/include/linux/mlx4/qp.h
index 262deac..6d351473 100644
--- a/include/linux/mlx4/qp.h
+++ b/include/linux/mlx4/qp.h
@@ -34,6 +34,7 @@
 #define MLX4_QP_H
 
 #include <linux/types.h>
+#include <linux/if_ether.h>
 
 #include <linux/mlx4/device.h>
 
@@ -143,7 +144,7 @@
 	u8			feup;
 	u8			fvl_rx;
 	u8			reserved4[2];
-	u8			dmac[6];
+	u8			dmac[ETH_ALEN];
 };
 
 enum { /* fl */
@@ -318,7 +319,7 @@
 	__be32			dqpn;
 	__be32			qkey;
 	__be16			vlan;
-	u8			mac[6];
+	u8			mac[ETH_ALEN];
 };
 
 struct mlx4_wqe_lso_seg {