diff --git a/wscript b/wscript
index 3ee3d774..6fd915c1 100644
--- a/wscript
+++ b/wscript
@@ -559,7 +559,7 @@ def build(bld):
 
 	# don't clean QtCreator files and reconfigure saved options
 	bld.clean_files = bld.bldnode.ant_glob('**',
-		excl='*.user configuration.py .lock* *conf_check_*/** config.log 3rdparty/libbacktrace/*.h %s/*' % Build.CACHE_DIR,
+		excl='.qtc* *.user configuration.py .lock* *conf_check_*/** config.log 3rdparty/libbacktrace/*.h %s/*' % Build.CACHE_DIR,
 		quiet=True, generator=True)
 
 	bld.load('xshlib')