diff --git a/bitfield/forms.py b/bitfield/forms.py
index 6340548..ec15fd0 100644
--- a/bitfield/forms.py
+++ b/bitfield/forms.py
@@ -11,6 +11,15 @@ class BitFieldCheckboxSelectMultiple(CheckboxSelectMultiple):
     def render(self, name, value, attrs=None, choices=()):
         if isinstance(value, BitHandler):
             value = [k for k, v in value if v]
+        elif isinstance(value, int):
+            real_value = []
+            div = 2
+            for (k, v) in self.choices:
+                if value % div != 0:
+                    real_value.append(k)
+                    value -= (value % div)
+                div *= 2
+            value = real_value
         return super(BitFieldCheckboxSelectMultiple, self).render(
             name, value, attrs=attrs, choices=enumerate(choices))