diff --git a/src/Ursa.Themes.Semi/Controls/NumericUpDown.axaml b/src/Ursa.Themes.Semi/Controls/NumericUpDown.axaml
index ba5141d..1efd0a2 100644
--- a/src/Ursa.Themes.Semi/Controls/NumericUpDown.axaml
+++ b/src/Ursa.Themes.Semi/Controls/NumericUpDown.axaml
@@ -48,7 +48,7 @@
                                 HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                                 AcceptsReturn="False"
                                 CornerRadius="{TemplateBinding CornerRadius}"
-                                DataValidationErrors.Errors="{ReflectionBinding $parent[NumericUpDown].(DataValidationErrors.Errors)}"
+                                DataValidationErrors.Errors="{ReflectionBinding $parent[u:NumericUpDown].(DataValidationErrors.Errors)}"
                                 FontSize="{TemplateBinding FontSize}"
                                 Foreground="{TemplateBinding Foreground}"
                                 InnerLeftContent="{TemplateBinding InnerLeftContent}"