diff --git a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
index 69d10501..ba4d5000 100644
--- a/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
+++ b/libs/sysplugins/smarty_internal_compile_private_object_block_function.php
@@ -24,7 +24,7 @@ class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Inter
     public function compile($args, $compiler, $tag, $methode)
     {
         $this->compiler = $compiler;
-        if (strlen($tag) < 5 || substr_compare($tag, 'close', -5, 5) != 0) {
+        if (strlen($tag) < 5 || substr($tag, -5) != 'close') {
             // opening tag of block plugin
             $this->required_attributes = array();
             $this->optional_attributes = array('_any'); 
@@ -57,4 +57,4 @@ class Smarty_Internal_Compile_Private_Object_Block_Function extends Smarty_Inter
     } 
 } 
 
-?>
+?>
\ No newline at end of file