diff --git a/src/Cytro.php b/src/Cytro.php
index 1ded13b..c053771 100644
--- a/src/Cytro.php
+++ b/src/Cytro.php
@@ -37,7 +37,7 @@ class Cytro {
     const SMART_FUNC_PARSER      = 'Cytro\Compiler::smartFuncParser';
 
     /**
-     * @var array of possible options, as associative array
+     * @var int[] of possible options, as associative array
      * @see setOptions, addOptions, delOptions
      */
     private static $_option_list = array(
@@ -50,7 +50,7 @@ class Cytro {
     );
 
     /**
-     * @var array Templates storage
+     * @var Cytro\Render[] Templates storage
      */
     protected $_storage = array();
     /**
@@ -72,12 +72,12 @@ class Cytro {
      */
     private $_provider;
     /**
-     * @var array of Cytro\ProviderInterface
+     * @var Cytro\ProviderInterface[]
      */
     protected $_providers = array();
 
     /**
-     * @var array of modifiers [modifier_name => callable]
+     * @var string[] list of modifiers [modifier_name => callable]
      */
     protected $_modifiers = array(
         "upper"       => 'strtoupper',
@@ -104,7 +104,7 @@ class Cytro {
     );
 
     /**
-     * @var array of compilers and functions
+     * @var array[] of compilers and functions
      */
     protected $_actions = array(
         'foreach' => array( // {foreach ...} {break} {continue} {foreachelse} {/foreach}
@@ -240,6 +240,7 @@ class Cytro {
 
     /**
      * Set compile directory
+     *
      * @param string $dir directory to store compiled templates in
      * @return Cytro
      */
@@ -274,8 +275,8 @@ class Cytro {
     /**
      * Add modifier
      *
-     * @param string $modifier
-     * @param string $callback
+     * @param string $modifier the modifier name
+     * @param string $callback the modifier callback
      * @return Cytro
      */
     public function addModifier($modifier, $callback) {
@@ -558,7 +559,6 @@ class Cytro {
      *
      * @param string $template name of template
      * @param array $vars array of data for template
-     * @internal param int $options
      * @return mixed
      */
     public function fetch($template, array $vars = array()) {
@@ -566,15 +566,14 @@ class Cytro {
     }
 
     /**
-     * Return template by name
+     * Get template by name
      *
-     * @param string $template
-     * @param int $options
+     * @param string $template template name with schema
+     * @param int $options additional options and flags
      * @return Cytro\Template
      */
     public function getTemplate($template, $options = 0) {
-        $options = $this->_options | $options;
-        $key = $template.".".dechex($options);
+        $key = dechex($this->_options | $options)."@".$template;
         if(isset($this->_storage[ $key ])) {
             /** @var Cytro\Template $tpl  */
             $tpl = $this->_storage[ $key ];
@@ -592,6 +591,7 @@ class Cytro {
 
     /**
      * Add custom template into storage
+     *
      * @param Cytro\Render $template
      */
     public function addTemplate(Cytro\Render $template) {
@@ -599,7 +599,7 @@ class Cytro {
     }
 
     /**
-     * Return template from storage or create if template doesn't exists.
+     * Load template from cache or create cache if it doesn't exists.
      *
      * @param string $tpl
      * @param int $opts
@@ -608,7 +608,7 @@ class Cytro {
     protected function _load($tpl, $opts) {
         $file_name = $this->_getCacheName($tpl, $opts);
         if(!is_file($this->_compile_dir."/".$file_name)) {
-            return $this->compile($tpl);
+            return $this->compile($tpl, true, $opts);
         } else {
             $cytro = $this;
             return include($this->_compile_dir."/".$file_name);
@@ -656,30 +656,15 @@ class Cytro {
         return $template;
     }
 
-
     /**
-     * @param string $tpl
-     * @param bool $cache
-     * @return bool
+     * Flush internal memory template cache
      */
-    /*public function clearCompiledTemplate($tpl, $cache = true) {
-        $file_name = $this->_compile_dir."/".$this->_getCacheName($tpl);
-        $it = new \GlobIterator($this->_compile_dir."/".str_replace(':', '_', basename($tpl)));
-        foreach() {
-
-        }
-        if(file_exists($file_name)) {
-            if($cache) {
-                unset($this->_storage[$tpl]);
-            }
-            return unlink($file_name);
-        } else {
-            return true;
-        }
-    }*/
+    public function flush() {
+       $this->_storage = array();
+    }
 
     /**
-     *
+     * Remove all compiled templates
      */
     public function clearAllCompiles() {
         \Cytro\FSProvider::clean($this->_compile_dir);
diff --git a/src/Cytro/Compiler.php b/src/Cytro/Compiler.php
index 32089c7..81d36dc 100644
--- a/src/Cytro/Compiler.php
+++ b/src/Cytro/Compiler.php
@@ -384,11 +384,9 @@ class Compiler {
         if(empty($tpl->_extended)) {
             $tpl->addPostCompile(__CLASS__."::extendBody");
         }
-        /*if($tpl->getOptions() & Template::EXTENDED) {
+        if($tpl->getOptions() & Template::EXTENDED) {
             $tpl->_compatible = true;
-        } else {
-            $tpl->_compatible = false;
-        }*/
+        }
         if($name) { // static extends
             $tpl->_extends = $tpl->getStorage()->getRawTemplate()->load($name, false);
 //            $tpl->_compatible = &$tpl->_extends->_compatible;
@@ -398,6 +396,9 @@ class Compiler {
             $tpl->addDepend($tpl->_extends);
             return "";
         } else { // dynamic extends
+            if(!isset($tpl->_compatible)) {
+                $tpl->_compatible = false;
+            }
             $tpl->_extends = $tpl_name;
             return '$parent = $tpl->getStorage()->getTemplate('.$tpl_name.', \Cytro\Template::EXTENDED);';
         }
diff --git a/src/Cytro/Template.php b/src/Cytro/Template.php
index 421d776..6dd686f 100644
--- a/src/Cytro/Template.php
+++ b/src/Cytro/Template.php
@@ -84,7 +84,7 @@ class Template extends Render {
      */
     public function __construct(Cytro $cytro, $options) {
         $this->_cytro = $cytro;
-        $this->_options = $this->_cytro->getOptions();
+        $this->_options = $options;
     }
 
     /**
diff --git a/tests/cases/Cytro/ExtendsTemplateTest.php b/tests/cases/Cytro/ExtendsTemplateTest.php
index 2cadf51..de7ea26 100644
--- a/tests/cases/Cytro/ExtendsTemplateTest.php
+++ b/tests/cases/Cytro/ExtendsTemplateTest.php
@@ -5,17 +5,17 @@ use Symfony\Component\Process\Exception\LogicException;
 
 class ExtendsTemplateTest extends TestCase {
 
-    public static function templates() {
+    public static function templates(array $vars) {
         return array(
             array(
                 "name"  => "level.0.tpl",
                 "level" => 0,
                 "blocks" => array(
-                    "b1" => "default 5",
+                    "b1" => "default {\$default}",
                     "b2" => "empty 0"
                 ),
                 "result" => array(
-                    "b1" => "default 5",
+                    "b1" => "default ".$vars["default"],
                     "b2" => "empty 0"
                 ),
             ),
@@ -57,9 +57,9 @@ class ExtendsTemplateTest extends TestCase {
         );
     }
 
-    public static function generate($block_mask, $extend_mask) {
+    public static function generate($block_mask, $extend_mask, array $vars) {
         $t = array();
-        foreach(self::templates() as $level => $tpl) {
+        foreach(self::templates($vars) as $level => $tpl) {
             $src = 'level#'.$level.' ';
             foreach($tpl["blocks"] as $bname => &$bcode) {
                 $src .= sprintf($block_mask, $bname, $bname.': '.$bcode)." level#$level ";
@@ -87,19 +87,26 @@ class ExtendsTemplateTest extends TestCase {
             "level" => "level",
             "default" => 5
         );
-        $tpls = self::generate('{block "%s"}%s{/block}', '{extends "level.%d.tpl"}');
+        $tpls = self::generate('{block "%s"}%s{/block}', '{extends "level.%d.tpl"}', $vars);
         foreach($tpls as $name => $tpl) {
             $this->tpl($name, $tpl["src"]);
-//            var_dump($src, "----\n\n----", $dst);ob_flush();fgetc(STDIN);
             $this->assertSame($this->cytro->fetch($name, $vars), $tpl["dst"]);
         }
-        $tpls = self::generate('{block "{$%s}"}%s{/block}', '{extends "level.%d.tpl"}');
+        $vars["default"]++;
+        $this->cytro->flush();
+        $tpls = self::generate('{block "{$%s}"}%s{/block}', '{extends "level.%d.tpl"}', $vars);
         arsort($tpls);
         foreach($tpls as $name => $tpl) {
             $this->tpl("d.".$name, $tpl["src"]);
-//            var_dump($tpl["src"], "----\n\n----", $tpl["dst"]);ob_flush();fgetc(STDIN);
             $this->assertSame($this->cytro->fetch("d.".$name, $vars), $tpl["dst"]);
-//            var_dump($name);ob_flush();fgets(STDIN);
+        }
+        $vars["default"]++;
+        $this->cytro->flush();
+        $tpls = self::generate('{block "%s"}%s{/block}', '{extends "$level.%d.tpl"}', $vars);
+        arsort($tpls);
+        foreach($tpls as $name => $tpl) {
+            $this->tpl("x.".$name, $tpl["src"]);
+            $this->assertSame($this->cytro->fetch("x.".$name, $vars), $tpl["dst"]);
         }
     }
 }