diff --git a/Scripts/Layout/ScrollSnapBase.cs b/Scripts/Layout/ScrollSnapBase.cs
index f918364..8764619 100644
--- a/Scripts/Layout/ScrollSnapBase.cs
+++ b/Scripts/Layout/ScrollSnapBase.cs
@@ -340,9 +340,10 @@ namespace UnityEngine.UI.Extensions
 
         private void OnValidate()
         {
-            if (_screensContainer || ChildObjects != null)
+            var children  = gameObject.GetComponent<ScrollRect>().content.childCount;
+            if (children != 0 || ChildObjects != null)
             {
-                var childCount = ChildObjects == null ? _screensContainer.childCount : ChildObjects.Length;
+                var childCount = ChildObjects == null || ChildObjects.Length == 0 ? children : ChildObjects.Length;
                 if (StartingScreen > childCount - 1)
                 {
                     StartingScreen = childCount - 1;
diff --git a/UnityUIExtensions.unitypackage b/UnityUIExtensions.unitypackage
index b7422c6..aefe528 100644
Binary files a/UnityUIExtensions.unitypackage and b/UnityUIExtensions.unitypackage differ