diff --git a/CMakeLists.txt b/CMakeLists.txt
index 964dbcb..1a3940e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,7 +19,7 @@ endif()
 
 
 
-add_definitions(-I ${CMAKE_SOURCE_DIR}/)
+add_definitions(-I ${CMAKE_SOURCE_DIR}/ -I ${CMAKE_CURRENT_BINARY_DIR}/ )
 
 # from https://github.com/gsauthof/cmake-ragel
 macro(RAGEL_TARGET Name Input Output)
@@ -65,9 +65,9 @@ RAGEL_TARGET(value value.rl value.cpp COMPILE_FLAGS "-p -G2")
 
 # need to copy all OUTPUT file to the build dir
 add_custom_command(
-	OUTPUT phase2-parser.cpp phase2-parser.h
+	OUTPUT phase2-parser.cpp phase2-parser.h phase2-parser.out
 	COMMAND lemon++ -Tlempar.cxx phase2-parser.lemon
-	COMMAND cp -p phase2-parser.cpp phase2-parser.h ${CMAKE_CURRENT_BINARY_DIR}/
+	COMMAND mv -f phase2-parser.cpp phase2-parser.h phase2-parser.out ${CMAKE_CURRENT_BINARY_DIR}/
 	MAIN_DEPENDENCY phase2-parser.lemon 
 	DEPENDS lempar.cxx
 	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}