diff --git a/debian/lenny/dependencies/python-tqt/debian/rules b/debian/lenny/dependencies/python-tqt/debian/rules
index 1c9fc0b91..47a18d688 100755
--- a/debian/lenny/dependencies/python-tqt/debian/rules
+++ b/debian/lenny/dependencies/python-tqt/debian/rules
@@ -20,8 +20,8 @@ endif
 DOC=$(CURDIR)/debian/python-tqt-doc/usr/share/doc/python-tqt-doc
 INSTDIR=$(CURDIR)/debian
 
-export QTDIR=/usr/share/tqt3
-export QMAKESPEC=$(QTDIR)/mkspecs/linux-g++
+export TQTDIR=/usr/share/tqt3
+export QMAKESPEC=$(TQTDIR)/mkspecs/linux-g++
 
 ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 	CXXFLAGS += -O0
diff --git a/debian/squeeze/dependencies/python-tqt/debian/rules b/debian/squeeze/dependencies/python-tqt/debian/rules
index fa7a8bfcb..ba02eb70a 100755
--- a/debian/squeeze/dependencies/python-tqt/debian/rules
+++ b/debian/squeeze/dependencies/python-tqt/debian/rules
@@ -20,8 +20,8 @@ endif
 DOC=$(CURDIR)/debian/python-tqt-doc/usr/share/doc/python-tqt-doc
 INSTDIR=$(CURDIR)/debian
 
-export QTDIR=/usr/share/tqt3
-export QMAKESPEC=$(QTDIR)/mkspecs/linux-g++
+export TQTDIR=/usr/share/tqt3
+export QMAKESPEC=$(TQTDIR)/mkspecs/linux-g++
 
 ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 	CXXFLAGS += -O0
diff --git a/ubuntu/maverick/dependencies/python-tqt/debian/rules b/ubuntu/maverick/dependencies/python-tqt/debian/rules
index fa7a8bfcb..ba02eb70a 100755
--- a/ubuntu/maverick/dependencies/python-tqt/debian/rules
+++ b/ubuntu/maverick/dependencies/python-tqt/debian/rules
@@ -20,8 +20,8 @@ endif
 DOC=$(CURDIR)/debian/python-tqt-doc/usr/share/doc/python-tqt-doc
 INSTDIR=$(CURDIR)/debian
 
-export QTDIR=/usr/share/tqt3
-export QMAKESPEC=$(QTDIR)/mkspecs/linux-g++
+export TQTDIR=/usr/share/tqt3
+export QMAKESPEC=$(TQTDIR)/mkspecs/linux-g++
 
 ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 	CXXFLAGS += -O0