diff --git a/src/dev/peerat/backend/Configuration.java b/src/dev/peerat/backend/Configuration.java
index 6e15513..562f010 100644
--- a/src/dev/peerat/backend/Configuration.java
+++ b/src/dev/peerat/backend/Configuration.java
@@ -33,6 +33,7 @@ public class Configuration {
 	
 	private int groupJoinMinutes;
 	private String groupQuitMinutes;
+	private int groupMaxPlayers;
 	
 	private String mailUsername;
 	private String mailPassword;
@@ -197,6 +198,10 @@ public class Configuration {
 		return this.groupQuitMinutes;
 	}
 	
+	public int getGroupMaxPlayers(){
+		return this.groupMaxPlayers;
+	}
+	
 	public Mail getMail(){
 		return new Mail(
 				this.mailUsername,
diff --git a/src/dev/peerat/backend/repository/DatabaseRepository.java b/src/dev/peerat/backend/repository/DatabaseRepository.java
index 193b829..7efa4e0 100644
--- a/src/dev/peerat/backend/repository/DatabaseRepository.java
+++ b/src/dev/peerat/backend/repository/DatabaseRepository.java
@@ -732,7 +732,7 @@ public class DatabaseRepository {
 		if(id != null){
 			int howmany = numberInGroup(id);
 			System.out.println("join group, already have "+howmany);
-			if(howmany > 3) return false;
+			if(howmany > config.getGroupMaxPlayers()) return false;
 		}
 		Group alreadyInGroup = getPlayerGroup(user.getId(), group.getLinkToChapter());
 		if (id != null && alreadyInGroup == null) {