diff --git a/src/plugins/simulator/fs9/lobbyclient.cpp b/src/plugins/simulator/fs9/lobbyclient.cpp
index 147ed2600..00abd9ee0 100644
--- a/src/plugins/simulator/fs9/lobbyclient.cpp
+++ b/src/plugins/simulator/fs9/lobbyclient.cpp
@@ -312,7 +312,7 @@ namespace BlackSimPlugin
                     case DPLSESSION_HOSTMIGRATEDHERE:
                         message.append("Host migrated to this client"); break;
                     default:
-                        message.append("%1").arg(pStatusMsg->dwStatus);
+                        message.append(QString("Unknown PDPL_MESSAGE_SESSION_STATUS: %1").arg(pStatusMsg->dwStatus));
                         break;
                     }
                     qDebug() << message;