diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 985619a593230a6532017e4f61dfaa945b04a08f..1d8e158241da742eb845ac30bab4292cec33d479 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -60,7 +60,7 @@ struct switchdev_attr {
 		struct netdev_phys_item_id ppid;	/* PORT_PARENT_ID */
 		u8 stp_state;				/* PORT_STP_STATE */
 		unsigned long brport_flags;		/* PORT_BRIDGE_FLAGS */
-		u32 ageing_time;			/* BRIDGE_AGEING_TIME */
+		clock_t ageing_time;			/* BRIDGE_AGEING_TIME */
 		bool vlan_filtering;			/* BRIDGE_VLAN_FILTERING */
 	} u;
 };