diff --git a/src/ConfigSpace/forbidden.py b/src/ConfigSpace/forbidden.py
index 714b255b..65db8d02 100644
--- a/src/ConfigSpace/forbidden.py
+++ b/src/ConfigSpace/forbidden.py
@@ -336,13 +336,13 @@ def __init__(self, hyperparameter: Hyperparameter, value: Any) -> None:
         Args:
             hyperparameter: Hyperparameter on which a restriction will be made
             value: forbidden value
+        """
         if not hyperparameter.legal_value(value):
             raise ValueError(
                 "Forbidden clause must be instantiated with a "
                 f"legal hyperparameter value for '{hyperparameter}', but got "
                 f"'{value!s}'",
             )
-        """
         super().__init__(hyperparameter)
         self.value = value