diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index 6851e33df7d1..18e01791ad79 100644
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -83,7 +83,7 @@ struct hsr_vlan_ethhdr {
 struct hsr_sup_tlv {
 	u8		HSR_TLV_type;
 	u8		HSR_TLV_length;
-};
+} __packed;
 
 /* HSR/PRP Supervision Frame data types.
  * Field names as defined in the IEC:2010 standard for HSR.