diff --git a/README.md b/README.md
index e922746..05a4be5 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,10 @@ adb devices
 # You should now see your device
 ```
 
+### Using the automtic install script
+1. Clone this repository
+2. Run the `install.sh` as root on your terminal
+
 ## To Contribute
 
 1. Fork this repository.
diff --git a/install.sh b/install.sh
index fc5f88a..f7c4bfb 100755
--- a/install.sh
+++ b/install.sh
@@ -21,7 +21,7 @@ else
   groupadd adbusers
 fi
 
-usermod -a -G adbusers "$USER"
+usermod -a -G adbusers "$(logname)"
 udevadm control --reload-rules
 
 if [ "$USE_SERVICE_CMD" = "true" ]; then