diff --git a/main/src/main/scala/sbt/Project.scala b/main/src/main/scala/sbt/Project.scala
index 024165ab6..57841ea80 100755
--- a/main/src/main/scala/sbt/Project.scala
+++ b/main/src/main/scala/sbt/Project.scala
@@ -479,7 +479,7 @@ object Project extends ProjectExtra {
   }
 
   def setProject(session: SessionSettings, structure: BuildStructure, s: State): State =
-    setProject(session, structure, s, st => st)
+    setProject(session, structure, s, identity)
 
   def setProject(
       session: SessionSettings,