diff --git a/docs/developers.rst b/docs/developers.rst
index a407eee..591a5e8 100644
--- a/docs/developers.rst
+++ b/docs/developers.rst
@@ -1,3 +1,5 @@
+.. _Developers:
+
 Developers
 ==========
 
diff --git a/pastas_plugins/responses/rfunc.py b/pastas_plugins/responses/rfunc.py
index 9587594..220d496 100644
--- a/pastas_plugins/responses/rfunc.py
+++ b/pastas_plugins/responses/rfunc.py
@@ -104,10 +104,12 @@ def theis(A: float, a: float, b: float, t: ArrayLike) -> ArrayLike:
 
     def to_dict(self):
         """Method to export the response function to a dictionary.
+        
         Returns
         -------
         data: dict
             dictionary with all necessary information to reconstruct the rfunc object.
+        
         Notes
         -----
         The exported dictionary should exactly match the input arguments of __init__.