diff --git a/tests/pos/f112.scala b/tests/pos/f112.scala
new file mode 100644
index 000000000000..ad19fc5c4b04
--- /dev/null
+++ b/tests/pos/f112.scala
@@ -0,0 +1,6 @@
+type X
+val x: X = ???
+extension (x: X) def unapply(arg: Any): Boolean = true
+def test =
+  ??? match
+    case x() =>