diff --git a/README.md b/README.md
index 4ff27de..ba243a9 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ if(!"devtools" %in% rownames(installed.packages())){
   install.packages("devtools")
 }
 devtools::install_github("https://github.com/gmelloni/interactionRCS.git")
+# or alternative devtools::install_git("https://github.com/gmelloni/interactionRCS.git")
 library(interactionRCS)
 ```