diff --git a/umbrello/Makefile.am b/umbrello/Makefile.am
index 374ebc20..c2147b21 100644
--- a/umbrello/Makefile.am
+++ b/umbrello/Makefile.am
@@ -7,6 +7,6 @@ SUBDIRS = umbrello
 # have all needed files, that a GNU package needs
 AUTOMAKE_OPTIONS = foreign 
 
-AM_CPPFLAGS = $(QT_INCLUDES)
+AM_CPPFLAGS = $(TQT_INCLUDES)
 VERSION:=`cat ${PWD}/VERSION`