diff --git a/doorlockd/CMakeLists.txt b/doorlockd/CMakeLists.txt
index c347de0..1bc18ed 100644
--- a/doorlockd/CMakeLists.txt
+++ b/doorlockd/CMakeLists.txt
@@ -20,6 +20,9 @@ set(CMAKE_C_FLAGS "-O2 -Wall -pedantic -Wextra")
 
 find_package(Boost 1.55.0 COMPONENTS program_options system REQUIRED)
 
+set(JSON_INCLUDE_DIR "/usr/include/jsoncpp" CACHE PATH "path to jsoncpp includes")
+include_directories(${JSON_INCLUDE_DIR})
+
 find_package (Threads)
 
 set(SRCS