diff --git a/.env.example b/.env.example
index 565a391..b180f2c 100644
--- a/.env.example
+++ b/.env.example
@@ -7,4 +7,5 @@ DB_PASSWORD=bla
 DB_NAME=./test.sqlite
 NODE_ENV=production
 POSTALCODE_COUNTRYCODE=DE
-SEED_TEST_DATA=false
\ No newline at end of file
+SEED_TEST_DATA=false
+FRONTEND_URL=bla
\ No newline at end of file
diff --git a/README.md b/README.md
index cbbfcd0..038cac9 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,7 @@ pnpm docs
 | SEED_TEST_DATA         | Boolean            | False                | If you want the app to seed some example data set this to true                                                 |
 | MAILER_URL             | String(Url)        | N/A                  | The mailer's base url (no trailing slash)                                                                      |
 | MAILER_KEY             | String             | N/A                  | The mailer's api key.                                                                                          |
+| FRONTEND_URL           | String(Url)        | N/A                  | The link to frontend (no trailing slash)                                                                       |
 | IMPRINT_URL            | String(Url)        | /imprint             | The link to a imprint page for the system (Defaults to the frontend's imprint)                                 |
 | PRIVACY_URL            | String(Url)        | /privacy             | The link to a privacy page for the system (Defaults to the frontend's privacy page)                            |
 
diff --git a/src/mailer.ts b/src/mailer.ts
index e658af6..0a419b2 100644
--- a/src/mailer.ts
+++ b/src/mailer.ts
@@ -59,7 +59,7 @@ export class Mailer {
                     data: {
                         name: `${firstname} ${middlename} ${lastname}`,
                         barcode_content: `${runner_id}`,
-                        link: 'https://portal.lauf-fuer-kaya.de/profile/' + token
+                        link: `${process.env.FRONTEND_URL}/profile/${token}`
                     }
                 }
             });
@@ -90,7 +90,7 @@ export class Mailer {
                     data: {
                         name: `${firstname} ${middlename} ${lastname}`,
                         barcode_content: `${runner_id}`,
-                        link: 'https://portal.lauf-fuer-kaya.de/profile/' + token
+                        link: `${process.env.FRONTEND_URL}/profile/${token}`
                     }
                 }
             });