diff --git a/NEWS b/NEWS
index e80d03c5..88a3d55b 100644
--- a/NEWS
+++ b/NEWS
@@ -13,6 +13,10 @@ NEWS ( CHANGELOG and HISTORY )                                     HTMLPurifier
 ! Implemented Object module for trusted users
 - Fix non-visible parsing error in DirectLex with empty tags that have
   slashes inside attribute values.
+- Fix typo in CSS definition: border-collapse:seperate; was incorrectly
+  accepted as valid CSS. Usually non-visible, because this styling is the
+  default for tables in most browsers. Thanks Brett Zamir for pointing
+  this out.
 . Unit test refactoring for one logical test per test function
 . Config and context parameters in ComplexHarness deprecated: instead, edit
   the $config and $context member variables
diff --git a/library/HTMLPurifier/CSSDefinition.php b/library/HTMLPurifier/CSSDefinition.php
index 8de2aa7b..8bb744fb 100644
--- a/library/HTMLPurifier/CSSDefinition.php
+++ b/library/HTMLPurifier/CSSDefinition.php
@@ -204,7 +204,7 @@ class HTMLPurifier_CSSDefinition extends HTMLPurifier_Definition
         $this->info['border-right'] = new HTMLPurifier_AttrDef_CSS_Border($config);
         
         $this->info['border-collapse'] = new HTMLPurifier_AttrDef_Enum(array(
-            'collapse', 'seperate'));
+            'collapse', 'separate'));
         
         $this->info['caption-side'] = new HTMLPurifier_AttrDef_Enum(array(
             'top', 'bottom'));
diff --git a/tests/HTMLPurifier/AttrDef/CSSTest.php b/tests/HTMLPurifier/AttrDef/CSSTest.php
index 2d1b4c60..e38aebc5 100644
--- a/tests/HTMLPurifier/AttrDef/CSSTest.php
+++ b/tests/HTMLPurifier/AttrDef/CSSTest.php
@@ -67,6 +67,7 @@ class HTMLPurifier_AttrDef_CSSTest extends HTMLPurifier_AttrDefHarness
         $this->assertDef('border:1px solid #000;');
         $this->assertDef('border-bottom:2em double #FF00FA;');
         $this->assertDef('border-collapse:collapse;');
+        $this->assertDef('border-collapse:separate;');
         $this->assertDef('caption-side:top;');
         $this->assertDef('vertical-align:middle;');
         $this->assertDef('vertical-align:12px;');