diff --git a/src/wp-includes/ms-functions.php b/src/wp-includes/ms-functions.php
index cc797a7bd0..ebc699436d 100644
--- a/src/wp-includes/ms-functions.php
+++ b/src/wp-includes/ms-functions.php
@@ -76,12 +76,12 @@ function get_active_blog_for_user( $user_id ) {
 				}
 				$details = get_site( $blog_id );
 				if ( is_object( $details ) && $details->archived == 0 && $details->spam == 0 && $details->deleted == 0 ) {
-					$ret = $blog;
+					$ret = $details;
 					if ( get_user_meta( $user_id, 'primary_blog', true ) != $blog_id ) {
 						update_user_meta( $user_id, 'primary_blog', $blog_id );
 					}
 					if ( ! get_user_meta( $user_id, 'source_domain', true ) ) {
-						update_user_meta( $user_id, 'source_domain', $blog->domain );
+						update_user_meta( $user_id, 'source_domain', $details->domain );
 					}
 					break;
 				}