diff --git a/Server/src/main/java/uulm/teamname/marvelous/server/lobby/Lobby.java b/Server/src/main/java/uulm/teamname/marvelous/server/lobby/Lobby.java
index 518e893..af01a65 100644
--- a/Server/src/main/java/uulm/teamname/marvelous/server/lobby/Lobby.java
+++ b/Server/src/main/java/uulm/teamname/marvelous/server/lobby/Lobby.java
@@ -212,13 +212,15 @@ public class Lobby {
     }
 
     private void accept(Participant source, List<Event> accepted) {
-        Logger.debug("Accepting requests from participant '{}', broadcasting events to all except source",
-                source.id.getName());
-        connection.broadcastToAllExcept(source, accepted.toArray(new Event[0]));
+        if (!accepted.isEmpty()) {
+            Logger.debug("Accepting requests from participant '{}', broadcasting events to all except source",
+                    source.id.getName());
+            connection.broadcastToAllExcept(source, accepted.toArray(new Event[0]));
 
-        Logger.trace("Adding ack and sending back to originParticipant");
-        accepted.add(0, new EventBuilder(EventType.Ack).buildGameStateEvent());
-        connection.sendEvents(source, accepted.toArray(new Event[0]));
+            Logger.trace("Adding ack and sending back to originParticipant");
+            accepted.add(0, new EventBuilder(EventType.Ack).buildGameStateEvent());
+            connection.sendEvents(source, accepted.toArray(new Event[0]));
+        }
         badRequests = 0;
     }