diff --git a/src/main/java/envoy/server/processors/GroupResizeProcessor.java b/src/main/java/envoy/server/processors/GroupResizeProcessor.java
index fbf39df..7bcc72a 100644
--- a/src/main/java/envoy/server/processors/GroupResizeProcessor.java
+++ b/src/main/java/envoy/server/processors/GroupResizeProcessor.java
@@ -18,23 +18,30 @@ import envoy.server.net.ObjectWriteProxy;
  */
 public class GroupResizeProcessor implements ObjectProcessor<GroupResizeEvent> {
 
-	PersistenceManager	persistenceManager	= PersistenceManager.getInstance();
-	ConnectionManager	connectionManager	= ConnectionManager.getInstance();
+	private static final PersistenceManager	persistenceManager	= PersistenceManager.getInstance();
+	private static final ConnectionManager	connectionManager	= ConnectionManager.getInstance();
 
 	@Override
 	public void process(GroupResizeEvent input, long socketID, ObjectWriteProxy writeProxy) throws IOException {
-		envoy.server.data.Group group = persistenceManager.getGroupByID(input.getGroupID());
+
+		// Acquire the group to resize from the database
+		var group = persistenceManager.getGroupByID(input.getGroupID());
+
+		// Perform the desired operation
 		switch (input.getOperation()) {
 			case ADD:
-				group.getContacts().add(persistenceManager.getUserByID(input.get()));
+				group.getContacts().add(persistenceManager.getUserByID(input.get().getID()));
 				break;
-
 			case REMOVE:
-				group.getContacts().remove(persistenceManager.getUserByID(input.get()));
+				group.getContacts().remove(persistenceManager.getUserByID(input.get().getID()));
 				break;
 		}
+
+		// Update the group in the database
 		persistenceManager.updateContact(group);
-		writeProxy.write(socketID, group);
+
+		// Send the updated group to all of its members
+		var commonGroup = group.toCommon();
 		group.getContacts()
 			.stream()
 			.map(Contact::getID)
@@ -42,7 +49,7 @@ public class GroupResizeProcessor implements ObjectProcessor<GroupResizeEvent> {
 			.map(connectionManager::getSocketId)
 			.forEach(memberSocketID -> {
 				try {
-					writeProxy.write(memberSocketID, group);
+						writeProxy.write(memberSocketID, commonGroup);
 				} catch (IOException e) {
 					e.printStackTrace();
 				}