1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
index 27a7044868..9a7d03c0c2 100644
--- a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
+++ b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
@@ -1818,8 +1818,8 @@ void QWindowsXpNativeFileDialog::populateOpenFileName(OPENFILENAME *ofn, HWND ow
         QString defaultSuffix = m_options->defaultSuffix();
         if (defaultSuffix.startsWith(QLatin1Char('.')))
             defaultSuffix.remove(0, 1);
-        if (!defaultSuffix.isEmpty())
-            ofn->lpstrDefExt = qStringToWCharArray(defaultSuffix);
+        // QTBUG-33156, also create empty strings to trigger the appending mechanism.
+        ofn->lpstrDefExt = qStringToWCharArray(defaultSuffix);
     }
     // Flags.
     ofn->Flags = (OFN_NOCHANGEDIR | OFN_HIDEREADONLY | OFN_EXPLORER | OFN_PATHMUSTEXIST);