diff --git a/src/lib_json/CMakeLists.txt b/src/lib_json/CMakeLists.txt
index 418044d..e126d30 100644
--- a/src/lib_json/CMakeLists.txt
+++ b/src/lib_json/CMakeLists.txt
@@ -1,4 +1,8 @@
 OPTION(JSONCPP_LIB_BUILD_SHARED "Build jsoncpp_lib as a shared library." OFF)
+IF(BUILD_SHARED_LIBS)
+  SET(JSONCPP_LIB_BUILD_SHARED ON)
+ENDIF(BUILD_SHARED_LIBS)
+
 IF(JSONCPP_LIB_BUILD_SHARED)
   SET(JSONCPP_LIB_TYPE SHARED)
   ADD_DEFINITIONS( -DJSON_DLL_BUILD )