diff --git a/change_log.txt b/change_log.txt
index 800de6f2..f76ec278 100644
--- a/change_log.txt
+++ b/change_log.txt
@@ -1,4 +1,7 @@
  ===== trunk =====
+ 08.03.2014
+ - bugfix relative file path {include} within {block} of child templates did throw exception on first call (Issue 177)
+ 
  17.02.2014
  - bugfix Smarty failed when executing PHP on HHVM (Hip Hop 2.4) because uniqid('',true) does return string with ',' (forum topic 20343)
  
diff --git a/libs/sysplugins/smarty_internal_compile_block.php b/libs/sysplugins/smarty_internal_compile_block.php
index ba26ed0a..377288df 100644
--- a/libs/sysplugins/smarty_internal_compile_block.php
+++ b/libs/sysplugins/smarty_internal_compile_block.php
@@ -376,6 +376,13 @@ class Smarty_Internal_Compile_Private_Child_Block extends Smarty_Internal_Compil
         // check and get attributes
         $_attr = $this->getAttributes($compiler, $args);
 
+        // update template with original template resource of {block}
+        $compiler->template->template_resource = realpath(trim($_attr['file'], "'"));
+        // source object
+        unset ($compiler->template->source);
+        $exists = $compiler->template->source->exists;
+
+
         // must merge includes
         if ($_attr['nocache'] == true) {
             $compiler->tag_nocache = true;