diff --git a/R-package/README.md b/R-package/README.md
index ca65df9a3..db55b9eb7 100644
--- a/R-package/README.md
+++ b/R-package/README.md
@@ -5,8 +5,7 @@
 For up-to-date version(which is recommended), please install from github. Windows user will need to install [RTools](http://cran.r-project.org/bin/windows/Rtools/) first.
 
 ```r
-require(devtools)
-install_github('tqchen/xgboost',subdir='R-package')
+devtools::install_github('tqchen/xgboost',subdir='R-package')
 ```
 
 For stable version on CRAN, please run