diff --git a/node/web/Request.ts b/node/web/Request.ts
index e826a67..ec413fe 100644
--- a/node/web/Request.ts
+++ b/node/web/Request.ts
@@ -33,7 +33,8 @@ export class Request
 
     if ( ! result.ok ) 
     {
-      throw new Error( `POST ${url} failed: ${result.status} ${result.statusText} ${result.text()}` );
+      let resultText = await result.text();
+      throw new Error( `POST ${url} failed: ${result.status} ${result.statusText} ${resultText}` );
     }
 
     return result.json() as Promise<O>;