diff --git a/backend/src/main.ts b/backend/src/main.ts
index a9c2c77..89dee5d 100644
--- a/backend/src/main.ts
+++ b/backend/src/main.ts
@@ -74,7 +74,9 @@ async function bootstrap() {
     SwaggerModule.setup("api/swagger", app, document);
   }
 
-  await app.listen(parseInt(process.env.PORT) || 8080);
+  await app.listen(
+    parseInt(process.env.BACKEND_PORT || process.env.PORT || "8080"),
+  );
 
   const logger = new Logger("UnhandledAsyncError");
   process.on("unhandledRejection", (e) => logger.error(e));
diff --git a/docs/docs/setup/configuration.md b/docs/docs/setup/configuration.md
index 847cbb5..a8a3833 100644
--- a/docs/docs/setup/configuration.md
+++ b/docs/docs/setup/configuration.md
@@ -36,7 +36,7 @@ For installation specific configuration, you can use environment variables. The
 
 | Variable         | Default Value                                      | Description                                                                                              |
 | ---------------- | -------------------------------------------------- | -------------------------------------------------------------------------------------------------------- |
-| `PORT`           | `8080`                                             | The port on which the backend listens.                                                                   |
+| `BACKEND_PORT`   | `8080`                                             | The port on which the backend listens.                                                                   |
 | `DATABASE_URL`   | `file:../data/pingvin-share.db?connection_limit=1` | The URL of the SQLite database.                                                                          |
 | `DATA_DIRECTORY` | `./data`                                           | The directory where data is stored.                                                                      |
 | `CLAMAV_HOST`    | `127.0.0.1` or `clamav` when running with Docker   | The IP address of the ClamAV server. See the [ClamAV docs](integrations.md#clamav) for more information. |