diff --git a/scripts/utils/generateMain.js b/scripts/utils/generateMain.js
index c6b721675..8ee0431a7 100644
--- a/scripts/utils/generateMain.js
+++ b/scripts/utils/generateMain.js
@@ -194,8 +194,11 @@ function genFactory (folder, paths) {
 
     return apis
 
-    function handleError(err, callback) {
-      if (callback) return callback(err, result)
+    function handleError (err, callback) {
+      if (callback) {
+        process.nextTick(callback, err, result)
+        return { then: noop, catch: noop, abort: noop }
+      }
       return Promise.reject(err)
     }
 
@@ -230,6 +233,8 @@ function genFactory (folder, paths) {
     }
   }
 
+  function noop () {}
+
   module.exports = ESAPI
   `