diff --git a/sbt/src/sbt-test/actions/join/project/Build.scala b/sbt/src/sbt-test/actions/join/project/Build.scala
new file mode 100644
index 000000000..28835f3b3
--- /dev/null
+++ b/sbt/src/sbt-test/actions/join/project/Build.scala
@@ -0,0 +1,11 @@
+import sbt._
+import Keys._
+
+object Build extends Build
+{
+	lazy val root = Project("root", file(".")) dependsOn(b,c) settings(
+		compile in Compile <<= Seq(b, c).map(p => compile in (p, Compile)).join.map( as => (inc.Analysis.Empty /: as)(_ ++ _) )
+	)
+	lazy val b = Project("b", file("b"))
+	lazy val c = Project("c", file("c"))
+}
\ No newline at end of file
diff --git a/sbt/src/sbt-test/actions/join/test b/sbt/src/sbt-test/actions/join/test
new file mode 100644
index 000000000..5df2af1f3
--- /dev/null
+++ b/sbt/src/sbt-test/actions/join/test
@@ -0,0 +1 @@
+> compile