Produce a real false value instead of "false". Quick n dirty hack to make it work

create.js

@@ -31,6 +31,9 @@ function create (modules, options) {
     var data = {}
     for (var i = 0, max = names.length; max > i; i++) {
       var name = names[i]
+      if (input[name] === 'false') {
+        input[name] = false
+      }
 
       // Directive attributes
       if (name.indexOf(directive) === 0) {

test.js

@@ -55,6 +55,15 @@ test('class attribute', function (t) {
   )
 })
 
+test('non-string attribute value', function (t) {
+  t.plan(1)
+  t.is(
+    snabby`<input @class:x=${false}>`.data.class.x,
+    false,
+    'sets a prop to the real false value, not a string'
+  )
+})
+
 test('flatten array children', function (t) {
   t.plan(1)
   var arr = [