5 files changed, 27 insertions, 0 deletions
diff --git a/test/files/buildmanager/t2789/A.scala b/test/files/buildmanager/t2789/A.scala
new file mode 100644
index 0000000000..08d5bc840c
--- /dev/null
+++ b/test/files/buildmanager/t2789/A.scala
@@ -0,0 +1,5 @@
+class A {
+  implicit def e: E = new E
+  def x(i: Int)(implicit y: E): String = ""
+}
+class E
diff --git a/test/files/buildmanager/t2789/B.scala b/test/files/buildmanager/t2789/B.scala
new file mode 100644
index 0000000000..dcefbeec1b
--- /dev/null
+++ b/test/files/buildmanager/t2789/B.scala
@@ -0,0 +1,3 @@
+object B extends A {
+  val y = x(3)
+}
diff --git a/test/files/buildmanager/t2789/t2789.changes/A2.scala b/test/files/buildmanager/t2789/t2789.changes/A2.scala
new file mode 100644
index 0000000000..4ba3814e71
--- /dev/null
+++ b/test/files/buildmanager/t2789/t2789.changes/A2.scala
@@ -0,0 +1,5 @@
+class A {
+  def e: E = new E
+  def x(i: Int)(implicit y: E): String = ""
+}
+class E
diff --git a/test/files/buildmanager/t2789/t2789.check b/test/files/buildmanager/t2789/t2789.check
new file mode 100644
index 0000000000..78c5119355
--- /dev/null
+++ b/test/files/buildmanager/t2789/t2789.check
@@ -0,0 +1,11 @@
+builder > A.scala B.scala
+compiling Set(A.scala, B.scala)
+Changes: Map()
+builder > A.scala
+compiling Set(A.scala)
+Changes: Map(class A -> List(Changed(Definition(A.e))[method e changed from ()E to ()E flags: implicit <method>]), class E -> List())
+invalidate B.scala because inherited method changed [Changed(Definition(A.e))[method e changed from ()E to ()E flags: implicit <method>]]
+compiling Set(B.scala)
+B.scala:2: error: could not find implicit value for parameter y: E
+  val y = x(3)
+           ^
diff --git a/test/files/buildmanager/t2789/t2789.test b/test/files/buildmanager/t2789/t2789.test
new file mode 100644
index 0000000000..6f3bd03361
--- /dev/null
+++ b/test/files/buildmanager/t2789/t2789.test
@@ -0,0 +1,3 @@
+>>compile A.scala B.scala
+>>update A.scala=>A2.scala
+>>compile A.scala