diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 782d5b53f..ea819ba28 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -42,6 +42,16 @@ set_target_properties(${JSON_UNITTEST_TARGET_NAME} PROPERTIES
     COMPILE_OPTIONS "$<$<CXX_COMPILER_ID:MSVC>:/EHsc;$<$<CONFIG:Release>:/Od>>"
 )
 
+
+string(COMPARE NOTEQUAL "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_CURRENT_BINARY_DIR}" JSON_HAS_SEPARATE_BUILDDIR)
+
+if(${JSON_HAS_SEPARATE_BUILDDIR})
+
+file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/data" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
+
+endif()
+
+
 target_include_directories(${JSON_UNITTEST_TARGET_NAME} PRIVATE "src")
 target_link_libraries(${JSON_UNITTEST_TARGET_NAME} ${JSON_TARGET_NAME})