diff --git a/src/frontends/qt4/GuiWorkArea.C b/src/frontends/qt4/GuiWorkArea.C
index 47464a2b86..2a99b15041 100644
--- a/src/frontends/qt4/GuiWorkArea.C
+++ b/src/frontends/qt4/GuiWorkArea.C
@@ -9,11 +9,8 @@
  * Full author contact details are available in file CREDITS.
  */
 
-#undef QT3_SUPPORT
-
 #include <config.h>
 
-
 #include "GuiWorkArea.h"
 
 #include "QLPainter.h"