diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index b8b2f2e3..e9744653 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -50,6 +50,8 @@ SET (sems_SRCS
  SipCtrlInterface.cpp
  log.cpp
  sems.cpp
+ jsonxx.cpp
+ jsonArg.cpp
  sip/hash.cpp
  sip/hash_table.cpp
  sip/msg_fline.cpp