diff --git a/src/spine.databind.coffee b/src/spine.databind.coffee
index e544dde..1f7390c 100644
--- a/src/spine.databind.coffee
+++ b/src/spine.databind.coffee
@@ -249,14 +249,22 @@ class Checked extends Template
 
 		if el.attr("type") is "radio"
 			if result is value
-				el.attr("checked", "checked")
-			else
-				el.removeAttr("checked")
+				if not el.is(":checked")
+					el.attr("checked", "checked")
+					el.trigger("change")
+			else 
+				if not el.is(":checked")
+					el.removeAttr("checked")
+					el.trigger("change")
 		else
-			if not result
-				el.removeAttr("checked")
+			if result 
+				if not el.is(":checked")
+					el.attr("checked", "checked")
+					el.trigger("change")
 			else
-				el.attr("checked", "checked")
+				if el.is(":checked")
+					el.removeAttr("checked")
+					el.trigger("change")
 	
 DataBind =
 	binders: [ 
diff --git a/src/spine.databind.js b/src/spine.databind.js
index 0f76595..6d5ccd6 100644
--- a/src/spine.databind.js
+++ b/src/spine.databind.js
@@ -470,15 +470,27 @@
       value = el.val();
       if (el.attr("type") === "radio") {
         if (result === value) {
-          return el.attr("checked", "checked");
+          if (!el.is(":checked")) {
+            el.attr("checked", "checked");
+            return el.trigger("change");
+          }
         } else {
-          return el.removeAttr("checked");
+          if (!el.is(":checked")) {
+            el.removeAttr("checked");
+            return el.trigger("change");
+          }
         }
       } else {
-        if (!result) {
-          return el.removeAttr("checked");
+        if (result) {
+          if (!el.is(":checked")) {
+            el.attr("checked", "checked");
+            return el.trigger("change");
+          }
         } else {
-          return el.attr("checked", "checked");
+          if (el.is(":checked")) {
+            el.removeAttr("checked");
+            return el.trigger("change");
+          }
         }
       }
     };