diff --git a/sdk_contrib/fetch/lib/fetch_p.js b/sdk_contrib/fetch/lib/fetch_p.js
index dc8b1dca..20596184 100644
--- a/sdk_contrib/fetch/lib/fetch_p.js
+++ b/sdk_contrib/fetch/lib/fetch_p.js
@@ -71,7 +71,7 @@ function enableCapture(baseFetchFunction, requestClass, downstreamXRayEnabled, s
     const thisDownstreamXRayEnabled = !!downstreamXRayEnabled;
     const thisSubsegmentCallback = subsegmentCallback;
     // Standardize request information
-    const request = args[0] instanceof requestClass ?
+    const request = (args[0] instanceof requestClass && args.length === 1) ?
       args[0] :
       new requestClass(...args);