diff --git a/ui/uinotification.cpp b/ui/uinotification.cpp
index 98a2df4..1c5dbad 100644
--- a/ui/uinotification.cpp
+++ b/ui/uinotification.cpp
@@ -170,7 +170,9 @@ void NotificationListener::OnAfterCloseFile(UIContext* context, FileContext* fil
 
 void NotificationListener::OnViewChange(UIContext* context, ViewFrame* frame, const QString& type)
 {
-	GlobalDebuggerUI::GetForContext(context)->SetActiveFrame(frame);
+	auto ui = GlobalDebuggerUI::GetForContext(context);
+	if (ui != nullptr)
+		ui->SetActiveFrame(frame);
 }