Index: src/Concurrency/Waitfor.cc
===================================================================
--- src/Concurrency/Waitfor.cc	(revision 6668a3ed6616003d19792926e5fac85310231168)
+++ src/Concurrency/Waitfor.cc	(revision 7d84369aa49c95f5c4745d0968fce359de10d2ad)
@@ -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 );
 				})