diff --git a/src/index.ts b/src/index.ts
index f766f39..8249199 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -5,18 +5,34 @@ import { print } from "graphql/language/printer";
 export const capitalize = (value: string) => value.charAt(0).toUpperCase() + value.slice(1);
 export const dropFileExtension = (filename: string) => path.parse(filename).name;
 
-export const inferWebhooks = async (baseURL: string, generatedGraphQL: object) => {
-  const entries = await fg(['*.ts'], { cwd: 'pages/api/webhooks' });
+export const inferWebhooks = async (baseURL: string, generatedGraphQL: any) => {
+  const entries = await fg(["*.ts"], { cwd: "pages/api/webhooks" });
 
   return entries.map(dropFileExtension).map((name: string) => {
-    const camelcaseName = name.split('-').map(capitalize).join('');
+    const camelcaseName = name.split("-").map(capitalize).join("");
+
+    const eventName = name.toUpperCase().replace(new RegExp("-", "g"), "_");
+    let eventType: string;
+    if (Object.values(generatedGraphQL.WebhookEventTypeAsyncEnum).includes(eventName)) {
+      eventType = "asyncEvents";
+    } else if (Object.values(generatedGraphQL.WebhookEventTypeSyncEnum).includes(eventName)) {
+      eventType = "syncEvents";
+    } else {
+      throw Error("Event type not found.");
+    }
+
     const statement = `${camelcaseName}SubscriptionDocument`;
-    const query = statement in  generatedGraphQL ? print((generatedGraphQL as any)[statement]) : null;
+    let query: string;
+    if (statement in generatedGraphQL) {
+      query = print((generatedGraphQL as any)[statement]);
+    } else {
+      throw Error("Subscription not found.");
+    }
 
     return {
       name,
-      asyncEvents: [name.toUpperCase().replace("-", "_")],
-      query, 
+      [eventType]: [eventName],
+      query,
       targetUrl: `${baseURL}/api/webhooks/${name}`,
     };
   });