diff --git a/testdata/parser/positive/18.pdl b/testdata/parser/positive/18.pdl
index 5482cb85c351f86974ce4d87eb7b4936c98719d0..1427b45e186abd5cfb8437eb09e37c4402695a75 100644
--- a/testdata/parser/positive/18.pdl
+++ b/testdata/parser/positive/18.pdl
@@ -12,7 +12,7 @@ primitive main1(in a, out c) {
 	x = 1;
 	y = 1;
 	while (true) {
-		synchronous {
+		sync {
 			if (x > 0 && fires(a)) {
 				z = get(a);
 				x--;
@@ -23,7 +23,7 @@ primitive main1(in a, out c) {
 				y++;
 			}
 		}
-		synchronous {
+		sync {
 			assert !fires(a) && !fires(c);
 			if (z != null && y > 0) {
 				w = z;