1 files changed, 1 insertions, 1 deletions
diff --git a/lib/events/event.h b/lib/events/event.h
index ed212759..91bdc632 100644
--- a/lib/events/event.h
+++ b/lib/events/event.h
@@ -100,7 +100,7 @@ namespace QMatrixClient
 
             const QJsonObject contentJson() const;
 
-            virtual QJsonObject toJson() const { Q_ASSERT(false); }
+            virtual QJsonObject toJson() const { Q_ASSERT(false); return {}; }
 
         private:
             Type _type;