diff --git a/Viewer/Makefile b/Viewer/Makefile
index b6222b49..3b83385f 100755
--- a/Viewer/Makefile
+++ b/Viewer/Makefile
@@ -62,8 +62,8 @@
 ## 	APP_NAME	- Application name
 ## 	APP_BIN		- App binary name (ignored for MacOS)
 ##
-## 	ARCH		- target achitecture (ia32, x86, x64, ...)
 ## 	TARGET_OS	- target OS (win32, linux, darwin)
+## 	ARCH		- target achitecture (ia32, x86, x64, ...)
 ##
 ## 	ELECTRON_DOWNOAD_URL
 ## 			- URL to download electron binary