Index: src/wp-includes/option.php
===================================================================
--- src/wp-includes/option.php	(revision 37361)
+++ src/wp-includes/option.php	(working copy)
@@ -295,7 +295,7 @@
 		return false;
 
 	/** This filter is documented in wp-includes/option.php */
-	if ( apply_filters( 'default_option_' . $option, false ) === $old_value ) {
+	if ( apply_filters( 'default_option_' . $option, false, $option ) === $old_value ) {
 		// Default setting for new options is 'yes'.
 		if ( null === $autoload ) {
 			$autoload = 'yes';
@@ -416,7 +416,7 @@
 	$notoptions = wp_cache_get( 'notoptions', 'options' );
 	if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) )
 		/** This filter is documented in wp-includes/option.php */
-		if ( apply_filters( 'default_option_' . $option, false ) !== get_option( $option ) )
+		if ( apply_filters( 'default_option_' . $option, false, $option ) !== get_option( $option ) )
 			return false;
 
 	$serialized_value = maybe_serialize( $value );