diff --git a/CMakeLists.txt b/CMakeLists.txt
index ea53bb9c9af454b5dbc25421a0194a6fd6929847..6c02b85ff4bebb190134dab97ff94d9b06362635 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,8 +10,8 @@ find_package(Boost 1.53.0 REQUIRED COMPONENTS program_options)
 find_package(fasttext REQUIRED)
 find_package(Doxygen REQUIRED)
 
-include_directories(${DYNET_INCLUDE_DIR})
-include_directories(${FASTTEXT_INCLUDE_DIR})
+include_directories(SYSTEM ${DYNET_INCLUDE_DIR})
+include_directories(SYSTEM ${FASTTEXT_INCLUDE_DIR})
 
 add_library(Boost SHARED IMPORTED)
 set_target_properties(Boost PROPERTIES IMPORTED_LOCATION ${Boost_PROGRAM_OPTIONS_LIBRARY_RELEASE})