diff --git a/source/org/jivesoftware/smack/packet/Presence.java b/source/org/jivesoftware/smack/packet/Presence.java
index 954218ac4..52e17d0f0 100644
--- a/source/org/jivesoftware/smack/packet/Presence.java
+++ b/source/org/jivesoftware/smack/packet/Presence.java
@@ -195,6 +195,12 @@ public class Presence extends Packet {
 
         buf.append(this.getExtensionsXML());
 
+        // Add the error sub-packet, if there is one.
+        XMPPError error = getError();
+        if (error != null) {
+            buf.append(error.toXML());
+        }
+
         buf.append("</presence>");
         
         return buf.toString();