diff --git a/CMake/variants/variants.lcs157 b/CMake/variants/variants.lcs157
index c14015c5efcf6fc8a3734c47ebdebe8a2ae9015d..1c7d26eaa4309cb4a3444e443326ae5b4c03aca1 100644
--- a/CMake/variants/variants.lcs157
+++ b/CMake/variants/variants.lcs157
@@ -2,8 +2,7 @@
 # AS: put under comment as LOFAR general rule is to use shared libs now. 
 #option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
 
-set(PYTHON_EXECUTABLE "/usr/bin/python3")
-set(PYTHON_FOUND TRUE)
+set(PYTHON_EXECUTABLE "/usr/bin/python3.6" CACHE FILEPATH "")
 set(WINCC_ROOT_DIR /opt/WinCC_OA/3.16)
 set(CASACORE_ROOT_DIR "/opt/casacore")
 set(CASAREST_ROOT_DIR "/opt/casarest")