diff --git a/src/util/networkrequest.hpp b/src/util/networkrequest.hpp
index f1de1066d..07da68f4a 100644
--- a/src/util/networkrequest.hpp
+++ b/src/util/networkrequest.hpp
@@ -372,7 +372,9 @@ private:
             QObject::connect(worker, &NetworkWorker::doneUrl, this->data.caller,
                              [data = this->data](auto reply) mutable {
                                  if (reply->error() != QNetworkReply::NetworkError::NoError) {
-                                     data.onError(reply->error());
+                                     if (data.onError) {
+                                         data.onError(reply->error());
+                                     }
                                      return;
                                  }