diff --git a/scripts/install b/scripts/install
index 8b33209..6e98750 100644
--- a/scripts/install
+++ b/scripts/install
@@ -60,8 +60,8 @@ ynh_app_setting_set $app db_pwd $db_pwd
 ynh_app_setting_set $app db_user $db_user
 sed -i "s@YNH_PMA_USER@$db_user@g" ../conf/create_db.sql
 sudo mysql -u root -p$(sudo cat /etc/yunohost/mysql) < ../conf/create_db.sql
-sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/create_tables.sql
-sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/create_tables.sql
+sudo sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/create_tables.sql
+sudo sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/create_tables.sql
 sudo mysql -u $db_user -p$db_pwd < $final_path/sql/create_tables.sql
 
 # Configuration
diff --git a/scripts/upgrade b/scripts/upgrade
index 95bedbf..1980359 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,12 +24,12 @@ sudo tar xvzf ../phpMyAdmin.tar.gz -C ..  > /dev/null 2>&1
 sudo cp  -r ../phpMyAdmin-$version-all-languages/* $final_path
 
 # Update tables
-sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/upgrade_column_info_4_3_0+.sql
-sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/upgrade_column_info_4_3_0+.sql
-mysql -u $db_user -p$db_pwd < $final_path/sql/upgrade_column_info_4_3_0+.sql
-sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/create_tables.sql
-sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/create_tables.sql
-mysql -u $db_user -p$db_pwd < $final_path/sql/create_tables.sql
+sudo sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/upgrade_column_info_4_3_0+.sql
+sudo sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/upgrade_column_info_4_3_0+.sql
+sudo mysql -u $db_user -p$db_pwd < $final_path/sql/upgrade_column_info_4_3_0+.sql
+sudo sed -i "s@phpmyadmin@YNH_PMA_USER@g" $final_path/sql/create_tables.sql
+sudo sed -i "s@YNH_PMA_USER@$db_user@g" $final_path/sql/create_tables.sql
+sudo mysql -u $db_user -p$db_pwd < $final_path/sql/create_tables.sql
 
 # Configuration
 echo "Configuring application..."