diff --git a/tests/init-global/warn/Color.scala b/tests/init-global/warn/Color.scala
new file mode 100644
index 000000000000..3bbb608b77b6
--- /dev/null
+++ b/tests/init-global/warn/Color.scala
@@ -0,0 +1,10 @@
+enum Color:
+  case None, White, Black
+
+enum Player:
+  case Black, White
+
+  val color: Color =
+    if this == Player.Black  // error
+    then Color.Black
+    else Color.White