diff --git a/install/tandoor-install.sh b/install/tandoor-install.sh
index cb5bfc49..198b5651 100644
--- a/install/tandoor-install.sh
+++ b/install/tandoor-install.sh
@@ -73,7 +73,7 @@ sed -i -e "s|SECRET_KEY=.*|SECRET_KEY=$secret_key|g" \
        -e "s|POSTGRES_DB=.*|POSTGRES_DB=$DB_NAME|g" \
        -e "s|POSTGRES_USER=.*|POSTGRES_USER=$DB_USER|g" \
        -e "\$a\STATIC_URL=/staticfiles/" \
-       -e "\$a\DEBUG=0" /opt/tandoor/.env
+       -e "\$a\# DEBUG=0" /opt/tandoor/.env
 msg_ok "Installed Tandoor"
 
 msg_info "Setting up PostgreSQL database"