diff --git a/readme.md b/readme.md
index 75d85e6..8402495 100644
--- a/readme.md
+++ b/readme.md
@@ -21,9 +21,11 @@ You must set environment variables:
 
 ```sh
 # Set variables you need
-SMSC_EXPORTER_VERSION=v0.1.2-alpha
+SMSC_EXPORTER_VERSION=v0.1.3-alpha
 SMSC_EXPORTER_PLATFORM=linux
 SMSC_EXPORTER_ARCH=amd64
+SMSC_LOGIN=<your_login>
+SMSC_PASSWORD=<your_password>
 
 # Download release
 wget https://github.com/xxxcoltxxx/smsc-balance-exporter/releases/download/${SMSC_EXPORTER_VERSION}/smsc_balance_exporter_${SMSC_EXPORTER_VERSION}_${SMSC_EXPORTER_PLATFORM}_${SMSC_EXPORTER_ARCH}.tar.gz
@@ -31,16 +33,15 @@ tar xvzf smsc_balance_exporter_${SMSC_EXPORTER_VERSION}_${SMSC_EXPORTER_PLATFORM
 mv ./smsc_balance_exporter_${SMSC_EXPORTER_VERSION}_${SMSC_EXPORTER_PLATFORM}_${SMSC_EXPORTER_ARCH} /usr/local/bin/smsc_balance_exporter
 
 # Add service to systemctl
-cat <<EOF >> /etc/systemd/system/smsc_balance_exporter.service
+cat <<EOF > /etc/systemd/system/smsc_balance_exporter.service
 [Unit]
 Description=Smsc Balance Exporter
 Wants=network-online.target
 After=network-online.target
 
 [Service]
-Environment="SMSC_LOGIN=<your_login> SMSC_PASSWORD=<your_password>"
-User=balance_exporter
-Group=balance_exporter
+Environment="SMSC_LOGIN=${SMSC_LOGIN}"
+Environment="SMSC_PASSWORD=${SMSC_PASSWORD}"
 Type=simple
 ExecStart=/usr/local/bin/smsc_balance_exporter