diff --git a/NPLib/Lassa/CMakeLists.txt b/NPLib/Lassa/CMakeLists.txt
index cdc94a9bd87f5f385feac44865e850cc43a33c40..0e7ac06cb57e1e5731b426c5ffee9e976889a288 100644
--- a/NPLib/Lassa/CMakeLists.txt
+++ b/NPLib/Lassa/CMakeLists.txt
@@ -1,5 +1,5 @@
 add_custom_command(OUTPUT TLassaPhysicsDict.cxx COMMAND ../scripts/build_dict.sh TLassaPhysics.h TLassaPhysicsDict.cxx TLassaPhysics.rootmap libNPLassa.dylib DEPENDS TLassaPhysics.h)
-add_custom_command(OUTPUT TLassaDataDict.cxx TLassaDataDict_rdict.pcm TLassaData.rootmap COMMAND ../scripts/build_dict.sh TLassaData.h TLassaDataDict.cxx TLassaData.rootmap libNPLassa.dylib DEPENDS TLassaData.h)
+add_custom_command(OUTPUT TLassaDataDict.cxx COMMAND ../scripts/build_dict.sh TLassaData.h TLassaDataDict.cxx TLassaData.rootmap libNPLassa.dylib DEPENDS TLassaData.h)
 add_library(NPLassa SHARED TLassaData.cxx TLassaPhysics.cxx TLassaDataDict.cxx TLassaPhysicsDict.cxx )
 target_link_libraries(NPLassa ${ROOT_LIBRARIES} NPCore) 
 install(FILES TLassaData.h TLassaPhysics.h DESTINATION ${CMAKE_INCLUDE_OUTPUT_DIRECTORY})