--- a/ui/qt/qt4.pro	Sat Jan 10 10:14:28 2015 +0100
+++ b/ui/qt/qt4.pro	Sun Jan 11 15:29:38 2015 +0100
@@ -45,6 +45,7 @@
 SOURCES += model.cpp
 SOURCES += tree.cpp
 SOURCES += button.cpp
+SOURCES += label.cpp
 
 HEADERS += toolkit.h
 HEADERS += window.h
@@ -56,4 +57,5 @@
 HEADERS += model.h
 HEADERS += tree.h
 HEADERS += button.h
+HEADERS += label.h