diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index cddc0c9f6bf9965a8e59bde34011896a762e07ba..6383707016574bfdfed991eb6ef4c347284cd829 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -141,7 +141,7 @@ struct hv_port_info {
 		struct {
 			u32 target_sint;
 			u32 target_vp;
-			u16 base_flag_bumber;
+			u16 base_flag_number;
 			u16 flag_count;
 			u32 rsvdz;
 		} event_port_info;