diff --git a/testdata/parser/positive/5.pdl b/testdata/parser/positive/5.pdl
index 4f3d6a9663bbe4901a06f0c31688497c94603e4a..3804782f9308b5b139d3e24069ba8ba88f7acf20 100644
--- a/testdata/parser/positive/5.pdl
+++ b/testdata/parser/positive/5.pdl
@@ -5,7 +5,7 @@ import std.buf;
 
 primitive main(in a, out b) {
     while (true) {
-        synchronous {
+        sync {
             if (fires(a) && fires(b)) {
                 msg x = get(a);
                 short y = readShort(x, 0);