diff --git a/main/Defaults.scala b/main/Defaults.scala
index 1a109f581..227a354c0 100644
--- a/main/Defaults.scala
+++ b/main/Defaults.scala
@@ -991,7 +991,6 @@ trait BuildExtra extends BuildCommon
 	}
 
 	def seq(settings: Setting[_]*): SettingsDefinition = new Project.SettingList(settings)
-	implicit def settingsDefinitionToSeq(sd: SettingsDefinition): Seq[Setting[_]] = sd.settings
 
 	def externalIvySettings(file: Initialize[File] = baseDirectory / "ivysettings.xml"): Setting[Task[IvyConfiguration]] =
 	{
diff --git a/util/collection/Settings.scala b/util/collection/Settings.scala
index 6135173fa..418b5b737 100644
--- a/util/collection/Settings.scala
+++ b/util/collection/Settings.scala
@@ -216,6 +216,10 @@ trait Init[Scope]
 				case Seq(x, xs @ _*) => (join(xs) zipWith x)( (t,h) => h +: t)
 			}
 	}
+	object SettingsDefinition {
+		implicit def unwrapSettingsDefinition(d: SettingsDefinition): Seq[Setting[_]] = d.settings
+		implicit def wrapSettingsDefinition(ss: Seq[Setting[_]]): SettingsDefinition = new SettingList(ss)
+	}
 	sealed trait SettingsDefinition {
 		def settings: Seq[Setting[_]]
 	}