diff --git a/packages/dynamite/lib/src/openapi_builder.dart b/packages/dynamite/lib/src/openapi_builder.dart
index 8e7220fb..c90dd500 100644
--- a/packages/dynamite/lib/src/openapi_builder.dart
+++ b/packages/dynamite/lib/src/openapi_builder.dart
@@ -225,6 +225,7 @@ class OpenAPIBuilder implements Builder {
         final String identifier,
         final Schema schema, {
         final bool ignoreEnum = false,
+        final Map<String, String>? extraJsonSerializableValues,
       }) {
         TypeResolveResult? result;
         if (schema.ref != null) {
@@ -232,13 +233,26 @@ class OpenAPIBuilder implements Builder {
           result = resolveType(
             name,
             spec.components!.schemas![name]!,
+            extraJsonSerializableValues: extraJsonSerializableValues,
           );
         } else if (schema.ofs != null) {
           if (!resolvedTypes.contains(identifier)) {
             resolvedTypes.add(identifier);
 
-            final results =
-                schema.ofs!.map((final s) => resolveType('$identifier${schema.ofs!.indexOf(s)}', s)).toList();
+            final results = schema.ofs!
+                .map(
+                  (final s) => resolveType(
+                    '$identifier${schema.ofs!.indexOf(s)}',
+                    s,
+                    extraJsonSerializableValues: {
+                      'disallowUnrecognizedKeys': 'true',
+                      if (extraJsonSerializableValues != null) ...{
+                        ...extraJsonSerializableValues,
+                      },
+                    },
+                  ),
+                )
+                .toList();
 
             output.add(
               Class(
@@ -383,6 +397,7 @@ class OpenAPIBuilder implements Builder {
                 final subResult = resolveType(
                   identifier,
                   schema.items!,
+                  extraJsonSerializableValues: extraJsonSerializableValues,
                 );
                 result = TypeResolveResult(
                   'List<${subResult.typeName}>',
@@ -425,7 +440,18 @@ class OpenAPIBuilder implements Builder {
                             '/// ${schema.description!}',
                           ],
                         ])
-                        ..annotations.add(refer('JsonSerializable').call([]))
+                        ..annotations.add(
+                          refer('JsonSerializable').call(
+                            [],
+                            {
+                              if (extraJsonSerializableValues != null) ...{
+                                for (final key in extraJsonSerializableValues.keys) ...{
+                                  key: refer(extraJsonSerializableValues[key]!),
+                                },
+                              },
+                            },
+                          ),
+                        )
                         ..constructors.addAll(
                           [
                             Constructor(
@@ -476,6 +502,7 @@ class OpenAPIBuilder implements Builder {
                                     uppercaseFirstCharacter: true,
                                   ),
                                   schema.properties![propertyName]!,
+                                  extraJsonSerializableValues: extraJsonSerializableValues,
                                 );
 
                                 final propertySchema = schema.properties![propertyName]!;
@@ -554,6 +581,7 @@ class OpenAPIBuilder implements Builder {
                               '$identifier${_toDartName(value.toString(), uppercaseFirstCharacter: true)}',
                               schema,
                               ignoreEnum: true,
+                              extraJsonSerializableValues: extraJsonSerializableValues,
                             );
                             b
                               ..name = _toDartName(value.toString())
diff --git a/packages/nextcloud/lib/src/nextcloud.openapi.dart b/packages/nextcloud/lib/src/nextcloud.openapi.dart
index 39b20a09..b5932631 100644
--- a/packages/nextcloud/lib/src/nextcloud.openapi.dart
+++ b/packages/nextcloud/lib/src/nextcloud.openapi.dart
@@ -3223,7 +3223,7 @@ class UserStatusClearAtTime {
   // coverage:ignore-end
 }
 
-@JsonSerializable()
+@JsonSerializable(disallowUnrecognizedKeys: true)
 class UserStatusClearAt {
   UserStatusClearAt({
     this.type,
@@ -3422,7 +3422,7 @@ class UserStatusFindStatus {
   // coverage:ignore-end
 }
 
-@JsonSerializable()
+@JsonSerializable(disallowUnrecognizedKeys: true)
 class UserStatus {
   UserStatus({
     this.userId,
diff --git a/packages/nextcloud/lib/src/nextcloud.openapi.g.dart b/packages/nextcloud/lib/src/nextcloud.openapi.g.dart
index 4f09c96e..4a0dd648 100644
--- a/packages/nextcloud/lib/src/nextcloud.openapi.g.dart
+++ b/packages/nextcloud/lib/src/nextcloud.openapi.g.dart
@@ -1507,10 +1507,16 @@ Map<String, dynamic> _$ProvisioningApiUserToJson(ProvisioningApiUser instance) =
       'ocs': instance.ocs?.toJson(),
     };
 
-UserStatusClearAt _$UserStatusClearAtFromJson(Map<String, dynamic> json) => UserStatusClearAt(
-      type: $enumDecodeNullable(_$UserStatusClearAtTypeEnumMap, json['type']),
-      time: json['time'] == null ? null : UserStatusClearAtTime.fromJson(json['time']),
-    );
+UserStatusClearAt _$UserStatusClearAtFromJson(Map<String, dynamic> json) {
+  $checkKeys(
+    json,
+    allowedKeys: const ['type', 'time'],
+  );
+  return UserStatusClearAt(
+    type: $enumDecodeNullable(_$UserStatusClearAtTypeEnumMap, json['type']),
+    time: json['time'] == null ? null : UserStatusClearAtTime.fromJson(json['time']),
+  );
+}
 
 Map<String, dynamic> _$UserStatusClearAtToJson(UserStatusClearAt instance) => <String, dynamic>{
       'type': _$UserStatusClearAtTypeEnumMap[instance.type],
@@ -1586,16 +1592,31 @@ Map<String, dynamic> _$UserStatusFindStatusToJson(UserStatusFindStatus instance)
       'ocs': instance.ocs?.toJson(),
     };
 
-UserStatus _$UserStatusFromJson(Map<String, dynamic> json) => UserStatus(
-      userId: json['userId'] as String?,
-      message: json['message'] as String?,
-      messageId: json['messageId'] as String?,
-      messageIsPredefined: json['messageIsPredefined'] as bool?,
-      icon: json['icon'] as String?,
-      clearAt: json['clearAt'] == null ? null : UserStatusClearAtWrap.fromJson(json['clearAt']),
-      status: $enumDecodeNullable(_$UserStatusTypeEnumMap, json['status']),
-      statusIsUserDefined: json['statusIsUserDefined'] as bool?,
-    );
+UserStatus _$UserStatusFromJson(Map<String, dynamic> json) {
+  $checkKeys(
+    json,
+    allowedKeys: const [
+      'userId',
+      'message',
+      'messageId',
+      'messageIsPredefined',
+      'icon',
+      'clearAt',
+      'status',
+      'statusIsUserDefined'
+    ],
+  );
+  return UserStatus(
+    userId: json['userId'] as String?,
+    message: json['message'] as String?,
+    messageId: json['messageId'] as String?,
+    messageIsPredefined: json['messageIsPredefined'] as bool?,
+    icon: json['icon'] as String?,
+    clearAt: json['clearAt'] == null ? null : UserStatusClearAtWrap.fromJson(json['clearAt']),
+    status: $enumDecodeNullable(_$UserStatusTypeEnumMap, json['status']),
+    statusIsUserDefined: json['statusIsUserDefined'] as bool?,
+  );
+}
 
 Map<String, dynamic> _$UserStatusToJson(UserStatus instance) => <String, dynamic>{
       'userId': instance.userId,