--- a/CMakeLists.txt	Mon Feb 03 20:12:44 2014 +0200
+++ b/CMakeLists.txt	Tue Feb 04 02:28:33 2014 +0200
@@ -5,6 +5,7 @@
 	src/Commands.cc
 	src/DataBuffer.cc
 	src/Events.cc
+	src/Expression.cc
 	src/Format.cc
 	src/Lexer.cc
 	src/LexerScanner.cc