diff --git a/app/widget/viewer/gizmotraverser.cpp b/app/widget/viewer/gizmotraverser.cpp
index 6277b2226..8105a7338 100644
--- a/app/widget/viewer/gizmotraverser.cpp
+++ b/app/widget/viewer/gizmotraverser.cpp
@@ -38,7 +38,14 @@ QVariant GizmoTraverser::ProcessShader(const Node *node, const TimeRange &range,
   Q_UNUSED(range)
   Q_UNUSED(job)
 
-  return size_;
+  return GenerateResolution();
 }
 
+QVariant GizmoTraverser::ProcessFrameGeneration(const Node *node, const GenerateJob &job)
+{
+  Q_UNUSED(node)
+  Q_UNUSED(job)
+
+  return GenerateResolution();
+}
 }
diff --git a/app/widget/viewer/gizmotraverser.h b/app/widget/viewer/gizmotraverser.h
index f7334b9f9..3f3e5b715 100644
--- a/app/widget/viewer/gizmotraverser.h
+++ b/app/widget/viewer/gizmotraverser.h
@@ -34,15 +34,17 @@ public:
   }
 
 protected:
-  virtual QVariant ProcessVideoFootage(StreamPtr stream, const rational &input_time);
+  virtual QVariant ProcessVideoFootage(StreamPtr stream, const rational &input_time) override;
 
-  virtual QVariant ProcessShader(const Node *node, const TimeRange &range, const ShaderJob& job);
+  virtual QVariant ProcessShader(const Node *node, const TimeRange &range, const ShaderJob& job) override;
 
-  virtual QVector2D GenerateResolution() const
+  virtual QVector2D GenerateResolution() const override
   {
     return size_;
   }
 
+  virtual QVariant ProcessFrameGeneration(const Node *node, const GenerateJob& job) override;
+
   // FIXME: Do something about audio?
 
 private: