diff --git a/scripts/install b/scripts/install
index 51ba7c7..15c071a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -144,7 +144,7 @@ chown -R "$app":"$app" "$final_path"
 config="$final_path/$app/config/prod.secret.exs"
 
 pushd $final_path/$app/js
-    ynh_use_nodejs    
+    ynh_use_nodejs
     sudo -u $app env PATH=$PATH yarn install
     sudo -u $app env PATH=$PATH NODE_BUILD_MEMORY=1024 yarn run build
 popd
@@ -160,6 +160,7 @@ popd
 cat "../conf/ldap.exs" >> "$config"
 
 pushd $final_path/$app
+    chown o-rwx $config
     ynh_secure_remove --file="/tmp/setup_db.psql"
     sudo -u "$app" MIX_ENV=prod mix ecto.migrate
     sudo -u "$app" MIX_ENV=prod mix mobilizon.users.new "$admin_email" --admin --password "$password"
diff --git a/scripts/upgrade b/scripts/upgrade
index 3ff4849..5e9381d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -125,10 +125,7 @@ then
 	tmpdir="$(mktemp -d)"
 	
 	# Backup the config file in the temp dir
-	if [ -s "$final_path/$app/config/prod.exs" ]
-	then
-		cp -a "$final_path/$app/config/prod.exs" "$tmpdir/prod.secret.exs"
-	fi
+    cp -a "$final_path/$app/config/prod.secret.exs" "$tmpdir/prod.secret.exs"
 	
 	# Remove the app directory securely
 	ynh_secure_remove --file="$final_path/$app"
@@ -137,10 +134,7 @@ then
 	ynh_setup_source --dest_dir="$final_path/$app"
 	
 	#Copy the admin saved settings from tmp directory to final path
-	if [ -s "$tmpdir/prod.exs" ]
-	then
-		cp -a  "$tmpdir/prod.exs" "$final_path/$app/config/prod.secret.exs"
-	fi
+    cp -a  "$tmpdir/prod.secret.exs" "$final_path/$app/config/prod.secret.exs"
 	
 	# Remove the tmp directory securely
 	ynh_secure_remove --file="$tmpdir"
@@ -183,6 +177,7 @@ ynh_script_progression --message="Modifying a config file..."
 
 config="$final_path/$app/config/prod.secret.exs"
 ynh_backup_if_checksum_is_different --file="$config"
+chown o-rwx $config
 
 #=================================================
 # MAKE SETUP
@@ -193,7 +188,7 @@ chown -R "$app":"$app" "$final_path"
 
 pushd $final_path/$app/js
     ynh_script_progression --message="Building NodeJS..."
-    ynh_use_nodejs    
+    ynh_use_nodejs
     sudo -u $app env PATH=$PATH yarn install
     sudo -u $app env PATH=$PATH yarn run build
 popd