diff --git a/CMake/FindJsonCpp.cmake b/CMake/FindJsonCpp.cmake
deleted file mode 100644
index 40032a19..00000000
--- a/CMake/FindJsonCpp.cmake
+++ /dev/null
@@ -1,19 +0,0 @@
-# Find package structure taken from libcurl
-
-include(FindPackageHandleStandardArgs)
-
-find_path(JSONCPP_INCLUDE_DIRS json/json.h)
-find_library(JSONCPP_LIBRARY jsoncpp)
-
-find_package_handle_standard_args(JsonCpp
-    FOUND_VAR
-      JSONCPP_FOUND
-    REQUIRED_VARS
-      JSONCPP_LIBRARY
-      JSONCPP_INCLUDE_DIRS
-    FAIL_MESSAGE
-      "Could NOT find jsoncpp"
-)
-
-set(JSONCPP_INCLUDE_DIRS ${JSONCPP_INCLUDE_DIRS})
-set(JSONCPP_LIBRARIES ${JSONCPP_LIBRARY})
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9eda3e0e..330b744b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -257,8 +257,6 @@ install(EXPORT ixwebsocket
         DESTINATION lib/cmake/ixwebsocket)
 
 if (USE_WS OR USE_TEST)
-  add_subdirectory(ixcore)
-
   include(FetchContent)
   FetchContent_Declare(spdlog
       GIT_REPOSITORY "https://github.com/gabime/spdlog"