diff --git a/libs/plugins/function.html_image.php b/libs/plugins/function.html_image.php
index fc6c685e..2fcdb4e1 100644
--- a/libs/plugins/function.html_image.php
+++ b/libs/plugins/function.html_image.php
@@ -113,8 +113,8 @@ function smarty_function_html_image($params, &$smarty)
                 return;
             }
         }
-		$_params = array('resource_type' => 'file', 'resource_name' => $_image_path);
-		require_once(SMARTY_DIR . 'core' . DIRECTORY_SEPARATOR . 'core.is_secure.php');
+        $_params = array('resource_type' => 'file', 'resource_name' => $_image_path);
+        require_once(SMARTY_DIR . 'core' . DIRECTORY_SEPARATOR . 'core.is_secure.php');
         if(!$smarty->security && !smarty_core_is_secure($_params, $smarty)) {
             $smarty->trigger_error("html_image: (secure) '$_image_path' not in secure directory", E_USER_NOTICE);
             return;