diff --git a/testdata/parser/negative/4.txt b/testdata/parser/negative/4.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b79ed8d04631163e22ac00d574020f8de1ad9de4
--- /dev/null
+++ b/testdata/parser/negative/4.txt
@@ -0,0 +1,3 @@
+Parse error at 4.pdl:8:7: Illegal built-in occurrence
+		y = get(a); // illegal
+		    ^