diff --git a/src/form2js.js b/src/form2js.js
index 0d88b6b..cec0fa9 100644
--- a/src/form2js.js
+++ b/src/form2js.js
@@ -274,8 +274,8 @@ var form2js = (function()
 				switch (fieldNode.type.toLowerCase()) {
 					case 'radio':
 					case 'checkbox':
-                        if (fieldNode.checked && fieldNode.value === 'true') return true;
-                        if (!fieldNode.checked && fieldNode.value === 'true') return false;
+                        if (fieldNode.checked && fieldNode.value === 'true' || fieldNode.value === 'on') return true;
+                        if (!fieldNode.checked && fieldNode.value === 'true' || fieldNode.value === 'on') return false;
 						if (fieldNode.checked) return fieldNode.value;
 						break;