diff --git a/README.md b/README.md
index dc31ae538..a58cd68e7 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,8 @@ yarn dev:ssl # If you are working with the login process
 > experience an SSL error when the authentication provider redirects you back to
 > the app after login. You can either remove the trailing s in the URL after the
 > redirection, or use the `yarn dev:ssl` command to use HTTPs for the
-> development server.
+> development server. Also, make sure to set the `NEXTAUTH_URL` environment
+> variable to `https://localhost:3000` in your `.env.local` file.
 
 > 👉 In [Visual Studio Code](https://code.visualstudio.com/), you also can run
 > the **default build task** (CMD-SHIFT-B) to start the dev server, database
@@ -351,6 +352,9 @@ You can use the ref eIAM. ADFS environment variables should be configured in
 your `.env.local` file. You'll find those secret variables in our shared
 1Password in the "Visualize.admin .env.local" entry.
 
+Make sure to set the `NEXTAUTH_URL` environment variable to
+`http://localhost:3000` and run the dev server with `yarn dev:ssl`.
+
 ## 10. <a name='Translations'></a>Translations
 
 Translations are managed via [Accent](https://accent.interactivethings.io).
diff --git a/app/.env.development b/app/.env.development
index e5a6f2a88..8b27fc667 100644
--- a/app/.env.development
+++ b/app/.env.development
@@ -6,4 +6,5 @@ WHITELISTED_DATA_SOURCES=["Prod", "Prod-uncached", "Int", "Int-uncached", "Test"
 SENTRY_IGNORE_API_RESOLUTION_ERROR=1
 NEXT_PUBLIC_VECTOR_TILE_URL=https://world.vectortiles.geo.admin.ch
 NEXT_PUBLIC_MAPTILER_STYLE_KEY=123
-ADFS_PROFILE_URL=https://www.myaccount-r.eiam.admin.ch/
\ No newline at end of file
+ADFS_PROFILE_URL=https://www.myaccount-r.eiam.admin.ch/
+NEXTAUTH_URL=https://localhost:3000
\ No newline at end of file