diff --git a/wp-includes/general-template.php b/wp-includes/general-template.php
index b3712425d9..6baf7b902a 100644
--- a/wp-includes/general-template.php
+++ b/wp-includes/general-template.php
@@ -585,7 +585,7 @@ function wp_title($sep = '»', $display = true, $seplocation = '') {
 	// If there is a post
 	if ( is_single() || ( is_home() && !is_front_page() ) || ( is_page() && !is_front_page() ) ) {
 		$post = $wp_query->get_queried_object();
-		$title = apply_filters( 'single_post_title', $post->post_title );
+		$title = apply_filters( 'single_post_title', empty( $post->post_title ) ? '' : $post->post_title );
 	}
 
 	// If there's a taxonomy