diff --git a/Dockerfile b/Dockerfile
index af80540d6..15217f9ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,8 @@ RUN npm run install
 #   Run!   #
 # -------- #
 
-# default value for SMTP configuration in case it is left blank in the .env file
+# default value for some configuration variables in case they is left blank in the .env file
 ENV SMTP_PORT=25
+ENV SSO_ENABLED=true
 
 ENTRYPOINT ["./entrypoint.sh"]
diff --git a/docker-compose.yml b/docker-compose.yml
index e794f9bd7..0163d915e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -31,3 +31,4 @@ slidewikiplatform:
     #- SMTP_CLIENTNAME=
     - SMTP_FROM=no-reply@slidewiki.org
     - SMTP_To=jira@slidewiki.atlassian.net
+    - SSO_ENABLED=true