diff --git a/src/build/open-api/types.ts b/src/build/open-api/types.ts
index 0d614420a305db..b2761cf2c967fe 100644
--- a/src/build/open-api/types.ts
+++ b/src/build/open-api/types.ts
@@ -41,7 +41,7 @@ export type DeRefedOpenAPI = {
     [key: string]: {
       [key: string]: {
         operationId: string;
-        parameters: Parameter[];
+        parameters: Parameter[] | undefined;
         requestBody: {
           content: {
             'application/json': {
diff --git a/src/build/resolveOpenAPI.ts b/src/build/resolveOpenAPI.ts
index 22abd9d11620b5..5c21ef01ef2c5a 100644
--- a/src/build/resolveOpenAPI.ts
+++ b/src/build/resolveOpenAPI.ts
@@ -128,10 +128,10 @@ async function apiCategoriesUncached(): Promise<APICategory[]> {
           slug: slugify(apiData.operationId),
           summary: apiData.summary,
           descriptionMarkdown: apiData.description,
-          pathParameters: apiData.parameters.filter(
+          pathParameters: (apiData.parameters || []).filter(
             p => p.in === 'path'
           ) as APIParameter[],
-          queryParameters: apiData.parameters.filter(
+          queryParameters: (apiData.parameters || []).filter(
             p => p.in === 'query'
           ) as APIParameter[],
           requestBodyContent: {