diff --git a/wp-admin/user-new.php b/wp-admin/user-new.php
index c29dd740c..f0555e18d 100644
--- a/wp-admin/user-new.php
+++ b/wp-admin/user-new.php
@@ -80,7 +80,7 @@ You\'ve been invited to join \'%1$s\' at
 
 Please click the following link to confirm the invite:
 %4$s' );
-			wp_mail( $new_user_email, sprintf( __( '[%s] Joining confirmation' ), get_option( 'blogname' ) ), sprintf($message, get_option('blogname'), site_url(), $_REQUEST[ 'role' ], site_url("/newbloguser/$newuser_key/")));
+			wp_mail( $new_user_email, sprintf( __( '[%s] Joining confirmation' ), get_option( 'blogname' ) ), sprintf($message, get_option('blogname'), home_url(), $_REQUEST[ 'role' ], home_url("/newbloguser/$newuser_key/")));
 			$redirect = add_query_arg( array('update' => 'add'), 'user-new.php' );
 		}
 	}