1 files changed, 1 insertions, 1 deletions
diff --git a/builtin.c b/builtin.c
index 7ff1071d..5477eb64 100644
--- a/builtin.c
+++ b/builtin.c
@@ -641,7 +641,7 @@ static const struct builtin_fn builtins_common[] = {
 	{ "__sync_nand_and_fetch", NULL, 1, { vol_ptr, &dyntype }, .op = &atomic_op },
 	{ "__sync_or_and_fetch", NULL, 1, { vol_ptr, &dyntype }, .op = &atomic_op },
 	{ "__sync_sub_and_fetch", NULL, 1, { vol_ptr, &dyntype }, .op = &atomic_op },
-	{ "__sync_synchronize", &void_ctype, 0 },
+	{ "__sync_synchronize", &void_ctype, 1 },
 	{ "__sync_val_compare_and_swap", NULL, 1, { vol_ptr, &dyntype, &dyntype }, .op = &atomic_op },
 	{ "__sync_xor_and_fetch", NULL, 1, { vol_ptr, &dyntype }, .op = &atomic_op },