diff --git a/configure.in.in b/configure.in.in
index b27783e..fbfb887 100644
--- a/configure.in.in
+++ b/configure.in.in
@@ -1,6 +1,6 @@
 #MIN_CONFIG
 AM_MAINTAINER_MODE
-CXXFLAGS="$CXXFLAGS -DQT_CLEAN_NAMESPACE  -DQT_NO_ASCII_CAST"
+CXXFLAGS="$CXXFLAGS  -DQT_NO_ASCII_CAST"
 
 ########### Check for DBus