diff --git a/CMakeLists.txt b/CMakeLists.txt
index 13dcb0f2..eba818a4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -100,7 +100,7 @@ if (PythonSupport)
  endif()
 
  set (TRIQS_LIBRARY_PYTHON ${PYTHON_LIBRARY} ${PYTHON_EXTRA_LIBS})
- set (TRIQS_INCLUDE_PYTHON ${PYTHON_INCLUDE_DIRS} ${PYTHON_NUMPY_INCLUDE_DIR})
+ set (TRIQS_INCLUDE_PYTHON ${PYTHON_NUMPY_INCLUDE_DIR} ${PYTHON_INCLUDE_DIRS})
 
  include_directories(SYSTEM ${TRIQS_INCLUDE_PYTHON} )
  #include_directories(SYSTEM ${PYTHON_NUMPY_INCLUDE_DIR} ${PYTHON_INCLUDE_DIRS})