diff --git a/Libraries/promiseRejectionTrackingOptions.js b/Libraries/promiseRejectionTrackingOptions.js
index fbdcd4abf88f91..3973bb49455185 100644
--- a/Libraries/promiseRejectionTrackingOptions.js
+++ b/Libraries/promiseRejectionTrackingOptions.js
@@ -36,6 +36,11 @@ let rejectionTrackingOptions: $Call<ExtractOptionsType, enable> = {
             ? rejection
             : JSON.stringify((rejection: $FlowFixMe));
       }
+      // It could although this object is not a standard error, it still has stack information to unwind
+      // $FlowFixMe ignore types just check if stack is there
+      if (rejection.stack && typeof rejection.stack === 'string') {
+        stack = rejection.stack;
+      }
     }
 
     const warning = `Possible unhandled promise rejection (id: ${id}):\n${