diff --git a/core/src/main/java/org/jivesoftware/smack/Roster.java b/core/src/main/java/org/jivesoftware/smack/Roster.java
index a107ee6e9..5ca822532 100644
--- a/core/src/main/java/org/jivesoftware/smack/Roster.java
+++ b/core/src/main/java/org/jivesoftware/smack/Roster.java
@@ -296,7 +296,7 @@ public class Roster {
     /**
      * Removes a roster entry from the roster. The roster entry will also be removed from the
      * unfiled entries or from any roster group where it could belong and will no longer be part
-     * of the roster. Note that this is an asynchronous call -- Smack must wait for the server
+     * of the roster. Note that this is a synchronous call -- Smack must wait for the server
      * to send an updated subscription status.
      *
      * @param entry a roster entry.
diff --git a/core/src/main/java/org/jivesoftware/smack/RosterGroup.java b/core/src/main/java/org/jivesoftware/smack/RosterGroup.java
index 916369b29..8459eebd8 100644
--- a/core/src/main/java/org/jivesoftware/smack/RosterGroup.java
+++ b/core/src/main/java/org/jivesoftware/smack/RosterGroup.java
@@ -154,7 +154,7 @@ public class RosterGroup {
     /**
      * Adds a roster entry to this group. If the entry was unfiled then it will be removed from 
      * the unfiled list and will be added to this group.
-     * Note that this is an asynchronous call -- Smack must wait for the server
+     * Note that this is a synchronous call -- Smack must wait for the server
      * to receive the updated roster.
      *
      * @param entry a roster entry.
@@ -183,11 +183,11 @@ public class RosterGroup {
      * Removes a roster entry from this group. If the entry does not belong to any other group 
      * then it will be considered as unfiled, therefore it will be added to the list of unfiled 
      * entries.
-     * Note that this is an asynchronous call -- Smack must wait for the server
+     * Note that this is a synchronous call -- Smack must wait for the server
      * to receive the updated roster.
      *
      * @param entry a roster entry.
-     * @throws XMPPException if an error occured while trying to remove the entry from the group. 
+     * @throws XMPPException if an error occurred while trying to remove the entry from the group. 
      */
     public void removeEntry(RosterEntry entry) throws XMPPException {
         PacketCollector collector = null;