diff --git a/README.md b/README.md
index 06946ca..96dc33c 100644
--- a/README.md
+++ b/README.md
@@ -50,8 +50,8 @@ Overview
 
 php-sudown has two styles: basic and advance.
 
-*basic*: less exntensiblity, fast rendering.
-*advance*: custmize your own markdown render, little bit slower than basic.
+*basic*: simple, fast rendering.
+*advance*: customize your own markdown render, little bit slower than basic.
 
 
 ### \Sundown::__construct(string $str [, array $config])
@@ -239,7 +239,6 @@ documented at [Render.md](https://github.com/chobie/php-sundown/blob/development
 documented at [ExtensionsAndRenderFlags.md](https://github.com/chobie/php-sundown/blob/development/docs/ExtensionsAndRenderFlags.md)
 
 
-
 Contributors
 ------------
 * Dominic Scheirlinck
diff --git a/package.xml b/package.xml
index caac1d8..43db5be 100644
--- a/package.xml
+++ b/package.xml
@@ -15,9 +15,9 @@ PECL Sundown provides straight forward object oriented Markdown API and customiz
   <email>chobieeee@php.net</email>
   <active>yes</active>
  </lead>
- <date>2012-04-20</date>
+ <date>2012-04-22</date>
  <version>
-  <release>0.3.2</release>
+  <release>0.3.3</release>
   <api>0.3.0</api>
  </version>
  <stability>
@@ -26,10 +26,10 @@ PECL Sundown provides straight forward object oriented Markdown API and customiz
  </stability>
  <license uri="http://www.php.net/license">PHP</license>
  <notes>
-bumped up 0.3.2
+bumped up 0.3.3
 
 [summary]
-  * use no_intra_emphasis instead of no_intraemphasis
+  * fix #16 missing space_after_headers extension
  </notes>
  <contents>
   <dir name="/">
@@ -98,6 +98,24 @@ bumped up 0.3.2
  <providesextension>sundown</providesextension>
  <extsrcrelease/>
  <changelog>
+  <release>
+   <stability>
+    <release>beta</release>
+    <api>beta</api>
+   </stability>
+   <version>
+    <release>0.3.2</release>
+    <api>0.3.0</api>
+   </version>
+   <date>2012-04-20</date>
+   <notes>
+bumped up 0.3.2
+
+[summary]
+  * use no_intra_emphasis instead of no_intraemphasis
+   </notes>
+  </release>
+
   <release>
    <stability>
     <release>beta</release>
diff --git a/php_sundown.h b/php_sundown.h
index f0362d4..f204870 100644
--- a/php_sundown.h
+++ b/php_sundown.h
@@ -282,7 +282,7 @@ static void php_sundown__get_extensions(HashTable *table, unsigned int *enabled_
 		extensions |= MKDEXT_LAX_HTML_BLOCKS;
 	}
 
-	if (SUNDOWN_HAS_EXTENSION("space_after_header")) {
+	if (SUNDOWN_HAS_EXTENSION("space_after_headers")) {
 		extensions |= MKDEXT_SPACE_HEADERS;
 	}
 
diff --git a/tests/004-render-extensions-space_after_headers.phpt b/tests/004-render-extensions-space_after_headers.phpt
new file mode 100644
index 0000000..28afedd
--- /dev/null
+++ b/tests/004-render-extensions-space_after_headers.phpt
@@ -0,0 +1,23 @@
+--TEST--
+check for space_after_headers behavior
+--SKIPIF--
+<?php if (!extension_loaded("sundown")) print "skip"; ?>
+--FILE--
+<?php
+$data = <<<EOF
+#Level1
+EOF;
+
+echo "space_after_headers disabled:\n";
+$a = new Sundown\Markdown(new Sundown\Render\HTML(), array("space_after_headers"=>false));
+echo $a->render($data);
+echo PHP_EOL;
+echo "space_after_headers enabled:\n";
+$a = new Sundown\Markdown(new Sundown\Render\HTML(), array("space_after_headers"=>true));
+echo $a->render($data);
+--EXPECT--
+space_after_headers disabled:
+<h1>Level1</h1>
+
+space_after_headers enabled:
+<p>#Level1</p>