diff --git a/ibmcloudant/cloudant_v1.py b/ibmcloudant/cloudant_v1.py
index e692e91f..6ac8fbd9 100644
--- a/ibmcloudant/cloudant_v1.py
+++ b/ibmcloudant/cloudant_v1.py
@@ -11979,7 +11979,7 @@ def set_properties(self, _dict: dict):
                     raise ValueError('Value for additional property {} must be of type object'.format(k))
                 setattr(self, k, v)
             else:
-                raise ValueError('Property {} cannot be specified as an additional property'.format(_key))
+                raise ValueError('Property {} cannot be specified as an additional property'.format(k))
 
     def __str__(self) -> str:
         """Return a `str` version of this DesignDocument object."""
@@ -12722,7 +12722,7 @@ def set_properties(self, _dict: dict):
                     raise ValueError('Value for additional property {} must be of type object'.format(k))
                 setattr(self, k, v)
             else:
-                raise ValueError('Property {} cannot be specified as an additional property'.format(_key))
+                raise ValueError('Property {} cannot be specified as an additional property'.format(k))
 
     def __str__(self) -> str:
         """Return a `str` version of this Document object."""
@@ -14421,7 +14421,7 @@ def set_properties(self, _dict: dict):
                     raise ValueError('Value for additional property {} must be of type str'.format(k))
                 setattr(self, k, v)
             else:
-                raise ValueError('Property {} cannot be specified as an additional property'.format(_key))
+                raise ValueError('Property {} cannot be specified as an additional property'.format(k))
 
     def __str__(self) -> str:
         """Return a `str` version of this IndexField object."""
@@ -16327,7 +16327,7 @@ def set_properties(self, _dict: dict):
                     raise ValueError('Value for additional property {} must be of type object'.format(k))
                 setattr(self, k, v)
             else:
-                raise ValueError('Property {} cannot be specified as an additional property'.format(_key))
+                raise ValueError('Property {} cannot be specified as an additional property'.format(k))
 
     def __str__(self) -> str:
         """Return a `str` version of this ReplicationDocument object."""
@@ -18413,7 +18413,7 @@ def set_properties(self, _dict: dict):
                     raise ValueError('Value for additional property {} must be of type str'.format(k))
                 setattr(self, k, v)
             else:
-                raise ValueError('Property {} cannot be specified as an additional property'.format(_key))
+                raise ValueError('Property {} cannot be specified as an additional property'.format(k))
 
     def __str__(self) -> str:
         """Return a `str` version of this ServerVendor object."""