diff --git a/testdata/parser/negative/24.pdl b/testdata/parser/negative/24.pdl
index aa44bdda2068eb610250dd1932822fa70c0b8afa..8e7ee6e0b969b1fc5a99a9729cb3f6c5b9383fee 100644
--- a/testdata/parser/negative/24.pdl
+++ b/testdata/parser/negative/24.pdl
@@ -7,7 +7,7 @@ primitive main(in a, out b) {
 	y %= x -= 3;
 	x *= x * x *= 5;
 	while (true) {
-		synchronous {
+		sync {
 			assert fires(a) == fires(b);
 		}
 	}