diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index 1b2afc11d0..9432668a5c 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -1343,7 +1343,7 @@ bool wxDataViewProgressRenderer::GetValue( wxVariant &value ) const
 #if wxUSE_ACCESSIBILITY
 wxString wxDataViewProgressRenderer::GetAccessibleDescription() const
 {
-    return wxString::Format(wxS("%i"), m_value);
+    return wxString::Format(wxS("%i %%"), m_value);
 }
 #endif // wxUSE_ACCESSIBILITY