diff --git a/VDSSample/ViewControllers/LabelViewController.swift b/VDSSample/ViewControllers/LabelViewController.swift
index e5d5fff..a64123e 100644
--- a/VDSSample/ViewControllers/LabelViewController.swift
+++ b/VDSSample/ViewControllers/LabelViewController.swift
@@ -136,14 +136,18 @@ class LabelViewController: ModelViewController<DefaultLabelModel>, StoryboardIni
         didSet {
             fontCategoryLabel.text = fontCategory.rawValue
             textSizePicker.items = fontCategory.sizes
-            textSize = textSizePicker.items[0]
+            if textSizePicker.items.count > 0 {
+                textSize = textSizePicker.items[0]
+            } else {
+                textSize = nil
+            }
             updateLabelStyle()
         }
     }
     
-    private var textSize: TypographicalStyle.FontSize = .large {
+    private var textSize: TypographicalStyle.FontSize? = .large {
         didSet {
-            textSizeLabel.text = textSize.rawValue
+            textSizeLabel.text = textSize?.rawValue ?? ""
             updateLabelStyle()
         }