diff --git a/cmake_support/OST.cmake b/cmake_support/OST.cmake
index 8151713e6d76424c23fa92f195695e2a4b5c43bf..2e5a58c5950bc927300d128ebdee8000002a6467 100644
--- a/cmake_support/OST.cmake
+++ b/cmake_support/OST.cmake
@@ -942,6 +942,7 @@ endmacro()
 set(_BOOST_MIN_VERSION 1.31)
 
 macro(setup_boost)
+  set (Boost_NO_BOOST_CMAKE TRUE)
   # starting with CMake 3.11 we could use the following instead of the foreach
   # find_package(Boost ${_BOOST_MIN_VERSION} COMPONENTS
   #              python${Python_VERSION_MAJOR}${Python_VERSION_MINOR} REQUIRED)