diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7ec7112..d5581e8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -8,7 +8,7 @@ set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".elf")
 if(NOT TARGET size)
 # Set the size utility to display the size of the final binary
 add_custom_target(size ALL
-    COMMAND ${CMAKE_SIZE} --format=avr --mcu=${AVR_MCU} ${CMAKE_PROJECT_NAME}.elf
+    COMMAND ${CMAKE_SIZE} -G --target=elf32-avr ${CMAKE_PROJECT_NAME}.elf
     DEPENDS ${CMAKE_PROJECT_NAME}.elf
 )
 endif()