diff --git a/addons/FastJet/CMakeLists.txt b/addons/FastJet/CMakeLists.txt
index 900995dc56..d8536f0277 100644
--- a/addons/FastJet/CMakeLists.txt
+++ b/addons/FastJet/CMakeLists.txt
@@ -10,3 +10,11 @@ fccanalyses_addon_build(FastJet
                         EXT_LIBS ${FASTJET_LIBRARIES}
                                  ROOT::MathCore
                         INSTALL_COMPONENT fastjet)
+
+
+install(FILES
+   ${CMAKE_CURRENT_LIST_DIR}/ExternalRecombiner.h
+   ${CMAKE_CURRENT_LIST_DIR}/ValenciaPlugin.h
+   ${CMAKE_CURRENT_LIST_DIR}/JetClustering.h
+   DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/FastJet
+   )