diff --git a/wp-includes/pluggable.php b/wp-includes/pluggable.php
index 395be0776a..97e4e4f759 100644
--- a/wp-includes/pluggable.php
+++ b/wp-includes/pluggable.php
@@ -1182,12 +1182,12 @@ if ( !function_exists( 'get_avatar' ) ) :
  * @param string $default URL to a default image to use if no avatar is available
  * @return string <img> tag for the user's avatar
 */
-function get_avatar( $id_or_email, $size = '64', $default = '' ) {
+function get_avatar( $id_or_email, $size = '96', $default = '' ) {
 	if ( ! get_option('show_avatars') )
 		return false;
 
 	if ( !is_numeric($size) )
-		$size = '64';
+		$size = '96';
 
 	$email = '';
 	if ( is_numeric($id_or_email) ) {