diff --git a/src/api/types.ts b/src/api/types.ts
index e0a66f0..ebb0b61 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -70,7 +70,7 @@ export type ServiceTemplate = {
   title: string;
   slug: string;
   description: string | null;
-  defaultDurationMinutes: number;
+  defaultDurationMinutes: number | null;
 };
 
 export type BusinessService = {