diff --git CMakeLists.txt CMakeLists.txt
index 9f8009a..eb61c88 100644
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -8,13 +8,6 @@ set(CT_VERSION ${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3})
 set(CT_VERSION_WINDOWS ${CMAKE_MATCH_1},${CMAKE_MATCH_2},${CMAKE_MATCH_3},0)
 message(STATUS "CT_VERSION = ${CT_VERSION}")
 
-# APPLE has issues with installing in /usr/bin because of SIP
-if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND APPLE)
-  set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE PATH "..." FORCE)
-elseif(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-  set(CMAKE_INSTALL_PREFIX "/usr" CACHE PATH "..." FORCE)
-endif()
-
 if(NOT PYTHON_EXEC)
   set(PYTHON_EXEC "python3")
 endif(NOT PYTHON_EXEC)
@@ -190,11 +179,6 @@ execute_process(
   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
 )
 
-# set icon on macos
-if(APPLE)
-  install(CODE "execute_process(COMMAND ${PYTHON_EXEC} ${CMAKE_SOURCE_DIR}/scripts/set_icon_macos.py ${CMAKE_SOURCE_DIR}/icons/cherrytree.ico ${CMAKE_INSTALL_PREFIX}/bin/cherrytree)")
-endif(APPLE)
-
 # install other files
 if(${CMAKE_SYSTEM_NAME} MATCHES Linux|.*BSD|DragonFly|Darwin)
   if(NOT APPLE)