diff --git a/smack-im/src/main/java/org/jivesoftware/smack/roster/Roster.java b/smack-im/src/main/java/org/jivesoftware/smack/roster/Roster.java
index c4e7a0cf2..8e241151d 100644
--- a/smack-im/src/main/java/org/jivesoftware/smack/roster/Roster.java
+++ b/smack-im/src/main/java/org/jivesoftware/smack/roster/Roster.java
@@ -951,8 +951,7 @@ public final class Roster extends Manager {
             // This is used in case no available presence is found
             Presence unavailable = null;
 
-            for (Resourcepart resource : userPresences.keySet()) {
-                Presence p = userPresences.get(resource);
+            for (Presence p : userPresences.values()) {
                 if (!p.isAvailable()) {
                     unavailable = p;
                     continue;