diff --git a/libdevcore/CMakeLists.txt b/libdevcore/CMakeLists.txt
index d11fa7ea4..a527aa7b0 100644
--- a/libdevcore/CMakeLists.txt
+++ b/libdevcore/CMakeLists.txt
@@ -12,6 +12,7 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DSTATICLIB")
 
 aux_source_directory(. SRC_LIST)
 
+include_directories(BEFORE ${JSONCPP_INCLUDE_DIRS})
 include_directories(BEFORE ..)
 include_directories(${Boost_INCLUDE_DIRS})