diff --git a/main/Defaults.scala b/main/Defaults.scala
index 904c7c973..411da6707 100755
--- a/main/Defaults.scala
+++ b/main/Defaults.scala
@@ -63,6 +63,7 @@ object Defaults
 	))
 	def globalCore: Seq[Setting[_]] = inScope(GlobalScope)(Seq(
 		pollInterval :== 500,
+		initialize :== (),
 		scalaHome :== None,
 		javaHome :== None,
 		outputStrategy :== None,
diff --git a/main/Keys.scala b/main/Keys.scala
index d73a614fd..07609eba4 100644
--- a/main/Keys.scala
+++ b/main/Keys.scala
@@ -33,6 +33,7 @@ object Keys
 	val thisProjectRef = SettingKey[ProjectRef]("this-project-ref")
 	val configuration = SettingKey[Configuration]("configuration")
 	val commands = SettingKey[Seq[Command]]("commands")
+	val initialize = SettingKey[Unit]("initialize")
 
 	// Command keys
 	val logged = AttributeKey[Logger]("log")