diff --git a/scripts/upgrade b/scripts/upgrade
index a5a139f..bd42955 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -132,9 +132,12 @@ ynh_system_user_create "$app" "$final_path"
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
-# ...
+# CREATE LOG FOLDER
 #=================================================
 
+mkdir -p "/var/log/$app"
+chown -R "$app":"$app" "/var/log/$app"
+
 #=================================================
 # CLOSE A PORT
 #=================================================