diff --git a/bksys/kde.py b/bksys/kde.py
index e38f4e3..23343c8 100644
--- a/bksys/kde.py
+++ b/bksys/kde.py
@@ -339,7 +339,7 @@ def generate(env):
 		opts.Save(cachefile, env)
 
 	## set default variables, one can override them in sconscript files
-	env.Append(CXXFLAGS = ['-I'+env['KDEINCLUDEPATH'], '-I'+env['QTINCLUDEPATH'], '-I/usr/include/qt4', '-includetqt.h' ],
+	env.Append(CXXFLAGS = ['-I'+env['KDEINCLUDEPATH'], '-I'+env['QTINCLUDEPATH'], '-I/usr/include/qt3', '-I/usr/include/qt4', '-includetqt.h' ],
 			LIBPATH = [env['KDELIBPATH'], env['QTLIBPATH'] ])
 	
 	env['QT_AUTOSCAN'] = 1