diff --git a/NPLib/Physics/CMakeLists.txt b/NPLib/Physics/CMakeLists.txt
index 0c5817586a457fb4fe3f487d6244394836645d9a..ea903e3e326d08baed8dbc56d61dafe0e6ff42b4 100644
--- a/NPLib/Physics/CMakeLists.txt
+++ b/NPLib/Physics/CMakeLists.txt
@@ -47,4 +47,4 @@ add_library(NPFissionConditions SHARED TFissionConditions.cxx TFissionConditions
 target_link_libraries(NPFissionConditions ${ROOT_LIBRARIES} ) 
 
 
-install(FILES GEF.h NPFissionDecay.h NPDecay.h NPBeam.h NPEnergyLoss.h NPFunction.h NPParticle.h NPNucleus.h NPReaction.h NPPhaseSpace.h NPQFS.h NPTimeStamp.h TInitialConditions.h TTrackInfo.h TInteractionCoordinates.h TReactionConditions.h TFissionConditions.h DESTINATION ${CMAKE_INCLUDE_OUTPUT_DIRECTORY})
+install(FILES GEF.h NPInelasticBreakup.h NPFissionDecay.h NPDecay.h NPBeam.h NPEnergyLoss.h NPFunction.h NPParticle.h NPNucleus.h NPReaction.h NPPhaseSpace.h NPQFS.h NPTimeStamp.h TInitialConditions.h TTrackInfo.h TInteractionCoordinates.h TReactionConditions.h TFissionConditions.h DESTINATION ${CMAKE_INCLUDE_OUTPUT_DIRECTORY})