diff --git a/src/external/xerces.cmake b/src/external/xerces.cmake
index e7797c5b2..04f3fa1d5 100644
--- a/src/external/xerces.cmake
+++ b/src/external/xerces.cmake
@@ -21,5 +21,6 @@ elseif(ALLOW_BUNDLED_XERCES AND EXISTS "${XERCES_DIR}/CMakeLists.txt")
 	add_subdirectory(${XERCES_DIR})
 	add_library(external-xerces INTERFACE)
 	target_link_libraries(external-xerces INTERFACE xerces-c)
+	target_include_directories(external-xerces INTERFACE ${XERCES_DIR}/src)
 
 endif()