diff --git a/message.mk b/message.mk
index 419e3f5f314..cb4ef43719a 100644
--- a/message.mk
+++ b/message.mk
@@ -88,6 +88,7 @@ endef
 MSG_AVAILABLE_KEYMAPS = $(eval $(call GENERATE_MSG_AVAILABLE_KEYMAPS))$(MSG_AVAILABLE_KEYMAPS_ACTUAL)
 
 MSG_CHECK_FILESIZE = Checking file size of $(TARGET).$(FIRMWARE_FORMAT)
+MSG_CHECK_FILESIZE_SKIPPED = (Firmware size check does not yet support $(MCU_ORIG); skipping)
 MSG_FILE_TOO_BIG = $(ERROR_COLOR)The firmware is too large!$(NO_COLOR) $(CURRENT_SIZE)/$(MAX_SIZE) ($(OVER_SIZE) bytes over)\n
 MSG_FILE_TOO_SMALL = The firmware is too small! $(CURRENT_SIZE)/$(MAX_SIZE)\n
 MSG_FILE_JUST_RIGHT = The firmware size is fine - $(CURRENT_SIZE)/$(MAX_SIZE) ($(PERCENT_SIZE)%%, $(FREE_SIZE) bytes free)\n
diff --git a/tmk_core/rules.mk b/tmk_core/rules.mk
index 5a7f299102e..fd59fa032a1 100644
--- a/tmk_core/rules.mk
+++ b/tmk_core/rules.mk
@@ -484,7 +484,7 @@ check-size:
 	fi
 else
 check-size:
-	$(SILENT) || echo "(Firmware size check does not yet support $(MCU) microprocessors; skipping.)"
+	$(SILENT) || echo "$(MSG_CHECK_FILESIZE_SKIPPED)"
 endif
 
 check-md5: