diff --git a/src/wuttaweb/forms/base.py b/src/wuttaweb/forms/base.py
index ceaeeb7..9dd6760 100644
--- a/src/wuttaweb/forms/base.py
+++ b/src/wuttaweb/forms/base.py
@@ -1002,7 +1002,7 @@ class Form:
             # for now we explicitly translate here, ugh.  also
             # note this does not yet allow for null values.. :(
             if isinstance(field.typ, colander.Boolean):
-                value = True if field.typ.true_val else False
+                value = True if value == field.typ.true_val else False
 
             model_data[field.oid] = make_json_safe(value)