diff --git a/src/wp-includes/ms-functions.php b/src/wp-includes/ms-functions.php
index 809d1645a9..e866e6e255 100644
--- a/src/wp-includes/ms-functions.php
+++ b/src/wp-includes/ms-functions.php
@@ -599,7 +599,6 @@ function wpmu_validate_blog_signup( $blogname, $blog_title, $user = '' ) {
 	$base = $current_site->path;
 
 	$blog_title = strip_tags( $blog_title );
-	$blog_title = substr( $blog_title, 0, 50 );
 
 	$errors = new WP_Error();
 	$illegal_names = get_site_option( 'illegal_names' );