diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c85d93ae481f9e8fee47815210c730222f37e840..cbedc3e7e8ca29ca5f5a5b9bdd8502e30c97be82 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -16,6 +16,7 @@
 #
 # Python
 #
+set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0)
 INCLUDE(../cmake/python.cmake)
 FINDPYTHON()