diff --git a/tiramisu/option.py b/tiramisu/option.py
index a552d7f..7c16771 100644
--- a/tiramisu/option.py
+++ b/tiramisu/option.py
@@ -647,7 +647,7 @@ def apply_requires(opt, config, permissive=False):
                 try:
                     value = homeconfig._getattr(shortname, permissive=True)
                 except PropertiesOptionError, err:
-                    permissives = err.proptype
+                    properties = err.proptype
                     if permissive:
                         for perm in settings.permissive:
                             if perm in properties: