2 files changed, 14 insertions, 0 deletions
diff --git a/test/files/neg/bug2148.check b/test/files/neg/bug2148.check
new file mode 100644
index 0000000000..22be424c39
--- /dev/null
+++ b/test/files/neg/bug2148.check
@@ -0,0 +1,4 @@
+bug2148.scala:9: error: type A is not a stable prefix
+  val b = new A with A#A1
+                       ^
+one error found
diff --git a/test/files/neg/bug2148.scala b/test/files/neg/bug2148.scala
new file mode 100644
index 0000000000..25788be84a
--- /dev/null
+++ b/test/files/neg/bug2148.scala
@@ -0,0 +1,10 @@
+class A {
+  var i = 0
+  trait A1 extends A {
+    i += 1
+  }
+}
+
+object Bob {
+  val b = new A with A#A1
+}
+\ No newline at end of file