diff --git a/lib/env.ts b/lib/env.ts
index b7ecb376..d37d3f7d 100644
--- a/lib/env.ts
+++ b/lib/env.ts
@@ -27,7 +27,7 @@ const envExtension = {
 /**
  * Full schema including Mintel base
  */
-export const envSchema = mintelEnvSchema.extend(envExtension);
+export const envSchema = z.object(mintelEnvSchema).extend(envExtension);
 
 /**
  * Validated environment object.