diff --git a/tiramisu/api.py b/tiramisu/api.py
index 396849b..0ff4a77 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -312,9 +312,10 @@ class TiramisuOptionProperty(CommonTiramisuOption):
         option = self.option_bag.option
         if apply_requires:
             self._test_slave_index()
+            properties = self.option_bag.properties
         else:
-            self.option_bag.apply_requires = False
-        properties = self.option_bag.properties
+            properties = self.settings.getproperties(self.option_bag,
+                                                     apply_requires=False)
         return set(properties)
 
     def add(self, prop):