diff --git a/oidc_ldap_bridge/ldaputils.py b/oidc_ldap_bridge/ldaputils.py
index 5d74cc23..28001b96 100644
--- a/oidc_ldap_bridge/ldaputils.py
+++ b/oidc_ldap_bridge/ldaputils.py
@@ -16,8 +16,8 @@ class LDAPObject:
         self.attrs = {}
         self.changes = {}
 
-        if hasattr(self, "objectClass") and not "objectClass" in kwargs:
-            kwargs["objectClass"] = self.objectClass
+        if hasattr(self, "object_class") and not "objectClass" in kwargs:
+            kwargs["objectClass"] = self.object_class
 
         for k, v in kwargs.items():
             self.attrs[k] = [v] if not isinstance(v, list) else v
@@ -199,8 +199,8 @@ class LDAPObject:
     def filter(cls, base=None, conn=None, **kwargs):
         conn = conn or cls.ldap()
         class_filter = (
-            "".join([f"(objectClass={oc})" for oc in cls.objectClass])
-            if hasattr(cls, "objectClass")
+            "".join([f"(objectClass={oc})" for oc in cls.object_class])
+            if hasattr(cls, "object_class")
             else None
         )
         arg_filter = ""
diff --git a/oidc_ldap_bridge/models.py b/oidc_ldap_bridge/models.py
index c9cd5cf0..28dce888 100644
--- a/oidc_ldap_bridge/models.py
+++ b/oidc_ldap_bridge/models.py
@@ -69,7 +69,7 @@ class User(LDAPObject):
 
 
 class Client(LDAPObject, ClientMixin):
-    objectClass = ["oauthClient"]
+    object_class = ["oauthClient"]
     base = "ou=clients,ou=oauth"
     id = "oauthClientID"
 
@@ -138,7 +138,7 @@ class Client(LDAPObject, ClientMixin):
 
 
 class AuthorizationCode(LDAPObject, AuthorizationCodeMixin):
-    objectClass = ["oauthAuthorizationCode"]
+    object_class = ["oauthAuthorizationCode"]
     base = "ou=authorizations,ou=oauth"
     id = "oauthCode"
 
@@ -174,7 +174,7 @@ class AuthorizationCode(LDAPObject, AuthorizationCodeMixin):
 
 
 class Token(LDAPObject, TokenMixin):
-    objectClass = ["oauthToken"]
+    object_class = ["oauthToken"]
     base = "ou=tokens,ou=oauth"
     id = "oauthAccessToken"
 
@@ -218,7 +218,7 @@ class Token(LDAPObject, TokenMixin):
 
 
 class Consent(LDAPObject):
-    objectClass = ["oauthConsent"]
+    object_class = ["oauthConsent"]
     base = "ou=consents,ou=oauth"
     id = "cn"