diff --git a/pybop/models/lithium_ion/weppner_huggins.py b/pybop/models/lithium_ion/weppner_huggins.py
index c4d7438af..58ec4202a 100644
--- a/pybop/models/lithium_ion/weppner_huggins.py
+++ b/pybop/models/lithium_ion/weppner_huggins.py
@@ -6,7 +6,7 @@
 
 
 class BaseWeppnerHuggins(pybamm.lithium_ion.BaseModel):
-    """WeppnerHuggins Model for GITT.
+    """WeppnerHuggins Model for GITT. Credit: pybamm-param team.
 
     Parameters
     ----------