diff --git a/.env_example b/.env_example
index 5257e83c..da0b4efa 100644
--- a/.env_example
+++ b/.env_example
@@ -23,4 +23,4 @@ WIKI_USER=NoteKfet2020
 WIKI_PASSWORD=
 
 # OIDC
-OIDC_RSA_PRIVATE_KEY=
+OIDC_RSA_PRIVATE_KEY=CHANGE_ME
diff --git a/note_kfet/settings/base.py b/note_kfet/settings/base.py
index 0f3a757c..2f7965d8 100644
--- a/note_kfet/settings/base.py
+++ b/note_kfet/settings/base.py
@@ -270,7 +270,7 @@ OAUTH2_PROVIDER = {
     'PKCE_REQUIRED': False, # PKCE (fix a breaking change of django-oauth-toolkit 2.0.0)
     'OIDC_ENABLED': True,
     'OIDC_RSA_PRIVATE_KEY':
-        os.getenv('OIDC_RSA_PRIVATE_KEY', '/var/secrets/oidc.key'),
+        os.getenv('OIDC_RSA_PRIVATE_KEY', 'CHANGE_ME_IN_ENV_SETTINGS').replace('\\n', '\n'), # for multilines
     'SCOPES': { 'openid': "OpenID Connect scope" },
 }