diff --git a/src/cpp/CMakeLists.txt b/src/cpp/CMakeLists.txt
index 811460d63..a00bd68b6 100644
--- a/src/cpp/CMakeLists.txt
+++ b/src/cpp/CMakeLists.txt
@@ -258,6 +258,10 @@ ADD_SHARED_LIBRARY( lcio
   ${LCIO_MT_SRCS}
 )
 INSTALL_SHARED_LIBRARY( lcio DESTINATION ${CMAKE_INSTALL_LIBDIR} EXPORT LCIOTargets )
+target_include_directories(lcio PUBLIC
+  $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src/cpp/include>
+  $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
 
 TARGET_LINK_LIBRARIES( lcio ${CMAKE_THREAD_LIBS_INIT} )
 TARGET_LINK_LIBRARIES( lcio PRIVATE SIO::sio )