diff --git a/src/models/roomtreemodel.cpp b/src/models/roomtreemodel.cpp
index c8fb7d3e0..b02017168 100644
--- a/src/models/roomtreemodel.cpp
+++ b/src/models/roomtreemodel.cpp
@@ -37,7 +37,9 @@ void RoomTreeModel::setConnection(NeoChatConnection *connection)
     if (m_connection == connection) {
         return;
     }
-    disconnect(m_connection.get(), nullptr, this, nullptr);
+    if (m_connection) {
+        disconnect(m_connection.get(), nullptr, this, nullptr);
+    }
     m_connection = connection;
     beginResetModel();
     initializeCategories();