diff --git a/classes/PostFixtures.inc b/classes/PostFixtures.inc
index 095f42a..022b1c5 100644
--- a/classes/PostFixtures.inc
+++ b/classes/PostFixtures.inc
@@ -229,8 +229,12 @@ class PostFixtures {
 	function process_blog_options($options, $categories) {
 		$this->_category = $categories;
 		foreach ($options as $option => $value) {
-			$value = preg_replace_callback('#\$\{([^\}]+)\}#', array(&$this, '_process_blog_options_callback'), $value);
-			update_option($option, $value);
+			if ($value === false) {
+				delete_option($option);
+			} else {
+				$value = preg_replace_callback('#\$\{([^\}]+)\}#', array(&$this, '_process_blog_options_callback'), $value);
+				update_option($option, $value);
+			}
 		}
 		unset($this->_category);
 	}
diff --git a/test/PostFixturesTest.php b/test/PostFixturesTest.php
index 93275a2..6d0089b 100644
--- a/test/PostFixturesTest.php
+++ b/test/PostFixturesTest.php
@@ -272,6 +272,10 @@ class PostFixturesTest extends PHPUnit_Framework_TestCase {
 
 		foreach ($expected_fields as $name => $value) {
 			$this->assertEquals($value, get_option($name));
+			if ($value === false) {
+				$all_options = get_alloptions();
+				$this->assertTrue(!isset($all_options[$name]));
+			}
 		}
 	}
 }