diff --git a/include/watermark_engine.inc.php b/include/watermark_engine.inc.php
index 5f5f5a6..3826954 100644
--- a/include/watermark_engine.inc.php
+++ b/include/watermark_engine.inc.php
@@ -8,22 +8,12 @@ require_once(BRATONIEN_TOOLS_PATH . 'include/watermark_base.inc.php');
 
 function bratonien_tools_watermark_engine_enabled()
 {
-  static $initialized = false;
-  static $enabled = false;
-
-  if ($initialized)
-  {
-    return $enabled;
-  }
-
   $config = bratonien_tools_get_watermark_engine_config();
   $enabled = !empty($config['enabled']);
-  $initialized = true;
 
   // Piwigo recalculates use_watermark for custom derivatives from the native
   // watermark file itself. Therefore an active Bratonien engine must keep the
   // native watermark file empty, not only the stored use_watermark flags false.
-  // This initialization is required only once per PHP request.
   if ($enabled)
   {
     bratonien_tools_disable_piwigo_watermarks();