diff --git a/include/sys/txg_impl.h b/include/sys/txg_impl.h
index 45fde2e1f..8ab7969b2 100644
--- a/include/sys/txg_impl.h
+++ b/include/sys/txg_impl.h
@@ -73,8 +73,7 @@ struct tx_cpu {
 	kcondvar_t	tc_cv[TXG_SIZE];
 	uint64_t	tc_count[TXG_SIZE];	/* tx hold count on each txg */
 	list_t		tc_callbacks[TXG_SIZE]; /* commit cb list */
-	char		tc_pad[8];		/* pad to fill 3 cache lines */
-};
+} ____cacheline_aligned;
 
 /*
  * The tx_state structure maintains the state information about the different