diff --git a/scripts/install b/scripts/install
index b5236ec..4541d02 100644
--- a/scripts/install
+++ b/scripts/install
@@ -66,8 +66,20 @@ sudo apt-get -y install nodejs
 sudo npm install -g yarn
 
 # Create DB without password
-sudo systemctl restart postgresql
-ynh_psql_create_db_without_password "$app"
+# sudo systemctl restart postgresql
+# ynh_psql_create_db_without_password "$app"
+# Don't work
+
+# Create user mastodon and set UTF8 encoding by default
+sudo su - postgres
+psql
+CREATE USER mastodon CREATEDB;
+update pg_database set datistemplate='false' where datname='template1';
+drop database template1;
+create database template1 encoding='UTF8' template template0;
+update pg_database set datistemplate='true' where datname='template1';
+\q
+exit
 
 # Download all Ruby source
 sudo git clone https://github.com/rbenv/rbenv.git $final_path/.rbenv