diff --git a/CMakeLists.txt b/CMakeLists.txt
index 45559ad..b95b4ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -105,10 +105,9 @@ if(CMAKE_CROSSCOMPILING)
   set(CMAKE_C_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
   set(CMAKE_C_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
 
-  # mcu related settings
-  # Tt would be nice to add "-mrelax" but due to some avr-gcc/linker bug it breaks functionality of the FW
-  # (LoadFilament stopped working and only return Finished)
-  # The bad news is that -mrelax was saving ~450B of CPU FLASH
+  # mcu related settings: It would be nice to add "-mrelax" but due to some avr-gcc/linker bug it
+  # breaks functionality of the FW (LoadFilament stopped working and only return Finished) The bad
+  # news is that -mrelax was saving ~450B of CPU FLASH
   set(MCU_FLAGS -mmcu=atmega32u4 -DF_CPU=16000000L)
   add_compile_options(${MCU_FLAGS})
   add_link_options(${MCU_FLAGS})
@@ -180,7 +179,7 @@ if(CMAKE_CROSSCOMPILING)
   add_custom_command(
     TARGET firmware
     POST_BUILD
-    COMMAND ${CMAKE_SIZE_UTIL} -C --mcu=atmega32u4 firmware
+    COMMAND avr-size ARGS -C --mcu=atmega32u4 firmware
     )
   report_size(firmware)