diff --git a/tiramisu/config.py b/tiramisu/config.py
index c691bb7..dc5e9c7 100644
--- a/tiramisu/config.py
+++ b/tiramisu/config.py
@@ -543,4 +543,6 @@ def mandatory_warnings(config):
             value = getattr(config, path)            
         except MandatoryError:
             yield path
-            
+        except:
+            pass
+