diff --git a/testdata/parser/negative/12.pdl b/testdata/parser/negative/12.pdl
new file mode 100644
index 0000000000000000000000000000000000000000..049b2b4539efcd49d3a04651aa5be79336571e3d
--- /dev/null
+++ b/testdata/parser/negative/12.pdl
@@ -0,0 +1,9 @@
+#version 100
+
+// illegal node declaration
+primitive main(in a, out b) {
+	while (true) {
+		channel x -> y;
+		synchronous {}
+	}
+}