diff --git a/README.md b/README.md
index 5924a81..03a56fe 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 This is a small hack to send faxes via the sipgate REST API from the command line.
 
 ## Deployment
-Add your login credentials to `login_credentials_muster.sh` and rename the file to `login_credentials.sh`
+Add your login credentials to `login_credentials_muster.sh` and rename the file to `.env`
 
 ## Usage
 `./fax.sh <letter.pdf> <recipient>`
diff --git a/authorization.sh b/authorization.sh
index c34dbbb..1c1a91d 100755
--- a/authorization.sh
+++ b/authorization.sh
@@ -1,5 +1,5 @@
 BASEPATH=$(dirname $(realpath $0))
-. $BASEPATH/login_credentials.sh
+. $BASEPATH/.env
 AUTH_TOKEN=$(echo $(curl --request POST --header 'Content-Type: application/x-www-form-urlencoded' --header 'Accept: application/json' --data-urlencode client_id=sipgate-app-web --data-urlencode grant_type=password --data-urlencode username=$SIPUSER --data-urlencode password=$SIPPWD https://api.sipgate.com/login/sipgate-apps/protocol/openid-connect/token -s | jq '.access_token') | sed 's/\"//g')
 if [ -z "$AUTH_TOKEN" ];
 then