diff --git a/sat/memory/disco.py b/sat/memory/disco.py
index 3eae7951..efcdf63b 100755
--- a/sat/memory/disco.py
+++ b/sat/memory/disco.py
@@ -427,7 +427,7 @@ class Discovery(object):
 
                 values = [field.value] if field.value is not None else field.values
                 if field.fieldType == u"boolean":
-                    values = [C.boolConst(C.bool(v)) for v in values]
+                    values = [C.boolConst(v) for v in values]
                 fields.append((data, values))
 
             extensions[form_type or ""] = fields