diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index b2226226..f43dd6b1 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -18,6 +18,7 @@ if(YAZE_BUILD_TESTS)
       ${CMAKE_SOURCE_DIR}/src/lib/imgui/backends
       ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine
       ${CMAKE_SOURCE_DIR}/src/lib/SDL/include
+      ${CMAKE_SOURCE_DIR}/third_party/json/include
       ${CMAKE_BINARY_DIR}/src/lib/SDL/include
       ${PROJECT_BINARY_DIR}
     )