diff --git a/ivy/IvyInterface.scala b/ivy/IvyInterface.scala
index fdf0cd7dd..ac653de40 100644
--- a/ivy/IvyInterface.scala
+++ b/ivy/IvyInterface.scala
@@ -11,7 +11,11 @@ import org.apache.ivy.util.url.CredentialsStore
 
 final case class ModuleID(organization: String, name: String, revision: String, configurations: Option[String] = None, isChanging: Boolean = false, isTransitive: Boolean = true, explicitArtifacts: Seq[Artifact] = Nil, extraAttributes: Map[String,String] = Map.empty, crossVersion: Boolean = false)
 {
-	override def toString = organization + ":" + name + ":" + revision + (configurations match { case Some(s) => ":" + s; case None => "" })
+	override def toString =
+		organization + ":" + name + ":" + revision +
+		(configurations match { case Some(s) => ":" + s; case None => "" }) +
+		(if(extraAttributes.isEmpty) "" else " " + extraString)
+	def extraString = extraAttributes.map { case (k,v) => k + "=" + v } mkString("(",", ",")")
 	def cross(v: Boolean) = copy(crossVersion = v)
 	// () required for chaining
 	def notTransitive() = intransitive()