1 files changed, 10 insertions, 0 deletions
diff --git a/tests/run/t8823.scala b/tests/run/t8823.scala
new file mode 100644
index 000000000..06e3bff69
--- /dev/null
+++ b/tests/run/t8823.scala
@@ -0,0 +1,10 @@
+class Tuple2Int(val encoding: Long) extends AnyVal with Product2[Int, Int] {
+  def canEqual(that: Any) = false
+  def _1: Int = 1
+  def _2: Int = 2
+}
+
+object Test extends dotty.runtime.LegacyApp {
+  assert(new Tuple2Int(0)._1 == 1)
+  assert(new Tuple2Int(0)._2 == 2)
+}