diff --git a/libs/Smarty_Compiler.class.php b/libs/Smarty_Compiler.class.php
index 7da3340f..13da43dd 100644
--- a/libs/Smarty_Compiler.class.php
+++ b/libs/Smarty_Compiler.class.php
@@ -352,7 +352,7 @@ class Smarty_Compiler extends Smarty {
         }
 
         if ($this->_init_smarty_vars) {
-            $template_header .= "<?php \$this->_execute_core_function('assign_smarty_interface'); ?>\n";
+            $template_header .= "<?php \$this->_execute_core_function('assign_smarty_interface', \$params=null); ?>\n";
             $this->_init_smarty_vars = false;
         }