diff --git a/CMakeLists.txt b/CMakeLists.txt
index 42576d9e7cf5f4591427fe653d7ff452546e4011..d5009a2dfa61cbc98d19b42c34c8992853ad1b0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,9 +50,9 @@ OPTION (BUILD_UNIT_TESTS "Build the unitary tests" ON)
 
 FINDPYTHON()
 
-INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_DIRS})
+INCLUDE_DIRECTORIES(SYSTEM ${PYTHON_INCLUDE_DIRS})
 FIND_NUMPY()
-INCLUDE_DIRECTORIES(${NUMPY_INCLUDE_DIRS})
+INCLUDE_DIRECTORIES(SYSTEM ${NUMPY_INCLUDE_DIRS})
 
 # ----------------------------------------------------
 # --- DEPENDANCIES -----------------------------------