diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index d6d828382d..09db35011f 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -37,7 +37,7 @@ endif()
 add_executable(Tests_run)
 add_subdirectory(lib)
 add_subdirectory(src)
-target_include_directories(Tests_run PUBLIC ${Python3_INCLUDE_DIRS})
+target_include_directories(Tests_run PUBLIC ${Python3_INCLUDE_DIRS} ${XercesC_INCLUDE_DIRS})
 target_link_libraries(Tests_run gtest_main ${Google_Tests_LIBS} FreeCADApp)
 
 add_executable(Sketcher_tests_run)