diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h
index 5e76988..f379929 100644
--- a/include/linux/if_packet.h
+++ b/include/linux/if_packet.h
@@ -173,7 +173,7 @@
 	 *    you can see which blk[s] is[are] outstanding etc.
 	 * 3. Validate kernel code.
 	 */
-	aligned_u64	seq_num;
+	__aligned_u64	seq_num;
 
 	/*
 	 * ts_last_pkt: