diff --git a/mail.php b/mail.php
index 496c6ee..502a861 100644
--- a/mail.php
+++ b/mail.php
@@ -946,6 +946,16 @@ class mail
     return reset ($from);
   }
 
+  /** Set the subject
+    * @param string In UTF8
+    */
+  public function setSubject ($subject)
+  {
+    $this->setHeader ("Subject",
+                      $this->encodeHeaders ("Subject", $subject,
+                                            "quoted-printable"));
+  }
+
   /** Set the Date
     * @param string $date In RFC 2822 format
     */