Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 2917)
+++ wp-includes/functions.php	(working copy)
@@ -243,7 +243,7 @@
 	if ('home' == $setting && '' == $cache_settings->home)
 		return apply_filters('option_' . $setting, $cache_settings->siteurl);
 
-	if ( isset($cache_settings->$setting) ) :
+	if ( isset($cache_settings->setting) ) :
 		return apply_filters('option_' . $setting, $cache_settings->$setting);
 	else :
 		// for these cases when we're asking for an unknown option
@@ -1849,4 +1849,4 @@
 	}	
 }
 
-?>
\ No newline at end of file
+?>