diff --git a/miner.h b/miner.h
index 6556f2a2..0a758c13 100644
--- a/miner.h
+++ b/miner.h
@@ -114,6 +114,7 @@ struct thread_q;
 
 struct work_restart {
 	volatile unsigned long	restart;
+	char			padding[128 - sizeof(unsigned long)];
 };
 
 extern struct work_restart *work_restart;