diff --git a/testdata/parser/negative/8.txt b/testdata/parser/negative/8.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dcd940f242d739124eae55dd86db74510fff1943
--- /dev/null
+++ b/testdata/parser/negative/8.txt
@@ -0,0 +1,3 @@
+Parse error at 8.pdl:11:1: Defined symbol clash: syncdrain
+primitive syncdrain(in a, in b) {
+^