Index: src/Concurrency/Waitfor.cc
===================================================================
--- src/Concurrency/Waitfor.cc	(revision 6668a3ed6616003d19792926e5fac85310231168)
+++ src/Concurrency/Waitfor.cc	(revision a892e615e84ac44220e6a364ca6c5d794f31be6b)
@@ -372,5 +372,5 @@
 			),
 			new ListInit(
-				map_range < std::list<Initializer*> > ( clause.target.arguments, [this](Expression * expr ){
+				map_range < std::list<Initializer*> > ( clause.target.arguments, [](Expression * expr ){
 					return new SingleInit( expr );
 				})