diff --git a/Ooui/Element.cs b/Ooui/Element.cs
index 2e32512..e3193e1 100644
--- a/Ooui/Element.cs
+++ b/Ooui/Element.cs
@@ -116,7 +116,7 @@ namespace Ooui
         protected bool SetBooleanAttributeProperty (string attributeName, bool newValue, [System.Runtime.CompilerServices.CallerMemberName] string propertyName = "")
         {
             var old = GetAttribute (attributeName) != null;
-            if (old != newValue)
+            if (old == newValue)
                 return false;
             if (newValue)
                 SetAttribute (attributeName, string.Empty);
diff --git a/Ooui/Input.cs b/Ooui/Input.cs
index 9574d11..d114c2d 100644
--- a/Ooui/Input.cs
+++ b/Ooui/Input.cs
@@ -40,11 +40,7 @@ namespace Ooui
 
         public bool IsChecked {
             get => GetBooleanAttribute ("checked");
-            set {
-                if (SetBooleanAttributeProperty ("checked", value)) {
-                    TriggerEventFromMessage (Message.Event (Id, "change", IsChecked));
-                }
-            }
+            set => SetBooleanAttributeProperty ("checked", value);
         }
 
         public double Minimum {