diff --git a/CMakeLists.txt b/CMakeLists.txt
index 59f5edc..5f04235 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@ find_package (GUIToolkitsVariables)
 include (cmake/version.cmake)
 include (${GUIToolkitsVariables_CMAKE_DIR}/common.cmake)
 
-set (QtPYTHON_VERSION ${QT_PYTHON_VERSION})
+set (QtPYTHON_VERSION ${QT_PYTHON_3_VERSION})
 
 set (CMAKE_VERBOSE_MAKEFILE ON)
 option (BUILD_SHARED_LIBS "Creation de bibliotheques dynamiques (defaut : ON)" ON)