diff --git a/include/wx/generic/progdlgg.h b/include/wx/generic/progdlgg.h
index 8ff7e97aa5..310481f397 100644
--- a/include/wx/generic/progdlgg.h
+++ b/include/wx/generic/progdlgg.h
@@ -124,8 +124,8 @@ protected:
     // the dialog was shown
     void ReenableOtherWindows();
 
-    // Set the top level parent we store from the parent window provided when
-    // creating the dialog.
+    // Store the parent window as wxWindow::m_parent and also set the top level
+    // parent reference we store in this class itself.
     void SetTopParent(wxWindow* parent);
 
     // return the top level parent window of this dialog (may be NULL)
diff --git a/src/generic/progdlgg.cpp b/src/generic/progdlgg.cpp
index ff6ce27983..8a3c9ede12 100644
--- a/src/generic/progdlgg.cpp
+++ b/src/generic/progdlgg.cpp
@@ -133,6 +133,7 @@ wxGenericProgressDialog::wxGenericProgressDialog(const wxString& title,
 
 void wxGenericProgressDialog::SetTopParent(wxWindow* parent)
 {
+    m_parent = parent;
     m_parentTop = GetParentForModalDialog(parent, GetWindowStyle());
 }