diff --git a/Utilities/KalDet/CMakeLists.txt b/Utilities/KalDet/CMakeLists.txt
index 12fbb25371c389078d6787aff43cbda32f07b8cd..01e09679a465e46a28aaa305f9bbfd4b9c78a071 100644
--- a/Utilities/KalDet/CMakeLists.txt
+++ b/Utilities/KalDet/CMakeLists.txt
@@ -74,6 +74,11 @@ gaudi_add_library(KalDetLib
                        ${DD4hep_COMPONENT_LIBRARIES}
 )
 
+target_include_directories(KalDetLib
+  PUBLIC ${GEAR_INCLUDE_DIRS}
+  PUBLIC ${LCIO_INCLUDE_DIRS}
+)
+
 install(TARGETS KalDetLib
   EXPORT CEPCSWTargets
   RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT bin