diff --git a/modules/viz/src/widget.cpp b/modules/viz/src/widget.cpp
index 485e35ed74..ba21b67855 100644
--- a/modules/viz/src/widget.cpp
+++ b/modules/viz/src/widget.cpp
@@ -17,6 +17,7 @@ cv::viz::Widget cv::viz::Widget::fromPlyFile(const String &file_name)
 {
     vtkSmartPointer<vtkPLYReader> reader = vtkSmartPointer<vtkPLYReader>::New ();
     reader->SetFileName (file_name.c_str ());
+    reader->Update();
     
     vtkSmartPointer<vtkDataSet> data = reader->GetOutput();
     CV_Assert(data);