diff --git a/src/Lobby.cc b/src/Lobby.cc
index ea5330ce..740438a5 100644
--- a/src/Lobby.cc
+++ b/src/Lobby.cc
@@ -153,7 +153,7 @@ void Lobby::add_client(shared_ptr<Client> c, ssize_t required_client_id) {
     this->clients[required_client_id] = c;
     index = required_client_id;
 
-  } else if (c->config.check_flag(Client::Flag::DEBUG_ENABLED)) {
+  } else if (c->config.check_flag(Client::Flag::DEBUG_ENABLED) && (this->mode != GameMode::SOLO)) {
     for (index = max_clients - 1; index >= min_client_id; index--) {
       if (!this->clients[index].get()) {
         this->clients[index] = c;