diff --git a/src/main/scala/sbt/impl/MapUtilities.scala b/src/main/scala/sbt/impl/MapUtilities.scala
index 66a56c98f..dcfd1f0ae 100644
--- a/src/main/scala/sbt/impl/MapUtilities.scala
+++ b/src/main/scala/sbt/impl/MapUtilities.scala
@@ -3,6 +3,7 @@
  */
 
 package sbt.impl
+import sbt._
 
 import java.util.Properties
 import java.io.{File, FileInputStream, FileOutputStream, InputStream, OutputStream}
diff --git a/src/main/scala/sbt/impl/SelectMainClass.scala b/src/main/scala/sbt/impl/SelectMainClass.scala
index f24b5deee..04e73cad3 100644
--- a/src/main/scala/sbt/impl/SelectMainClass.scala
+++ b/src/main/scala/sbt/impl/SelectMainClass.scala
@@ -1,4 +1,8 @@
+/* sbt -- Simple Build Tool
+ * Copyright 2009 Mark Harrah
+ */
 package sbt.impl
+import sbt._
 
 private[sbt] object SelectMainClass
 {
diff --git a/src/main/scala/sbt/impl/TestStatusReporter.scala b/src/main/scala/sbt/impl/TestStatusReporter.scala
index dddf0eb5a..8debd2c90 100644
--- a/src/main/scala/sbt/impl/TestStatusReporter.scala
+++ b/src/main/scala/sbt/impl/TestStatusReporter.scala
@@ -2,6 +2,7 @@
  * Copyright 2009 Mark Harrah
  */
 package sbt.impl
+import sbt._
 
 import java.io.File
 import scala.collection.mutable.{HashMap, Map}