diff --git a/Elwig/App.xaml.cs b/Elwig/App.xaml.cs
index c988f95..bb4e713 100644
--- a/Elwig/App.xaml.cs
+++ b/Elwig/App.xaml.cs
@@ -157,9 +157,12 @@ namespace Elwig {
 
         protected void OnPrintingReadyChanged(EventArgs evt) {
             foreach (Window w in Windows) {
-                foreach (var b in ControlUtils.FindAllChildren<Button>(w).Where(b => "Print".Equals(b.Tag))) {
+                foreach (var b in ControlUtils.FindAllChildren<Button>(w).Where(b => b.Tag?.ToString() == "Print")) {
                     b.IsEnabled = IsPrintingReady;
                 }
+                foreach (var i in ControlUtils.FindAllChildren<MenuItem>(w).Where(i => i.Tag?.ToString() == "Print")) {
+                    i.IsEnabled = IsPrintingReady;
+                }
             }
         }
     }
diff --git a/Elwig/Helpers/ControlUtils.cs b/Elwig/Helpers/ControlUtils.cs
index 39df9d6..135be7d 100644
--- a/Elwig/Helpers/ControlUtils.cs
+++ b/Elwig/Helpers/ControlUtils.cs
@@ -58,7 +58,8 @@ namespace Elwig.Helpers {
                     continue;
                 } else if (child is T t) {
                     yield return t;
-                } else if (child is DependencyObject childDepOpj) {
+                }
+                if (child is DependencyObject childDepOpj) {
                     foreach (T childOfChild in FindAllChildren<T>(childDepOpj)) {
                         yield return childOfChild;
                     }