diff --git a/scripts/utils/generate.js b/scripts/utils/generate.js
index f7c7efede..f4a7ed602 100644
--- a/scripts/utils/generate.js
+++ b/scripts/utils/generate.js
@@ -106,6 +106,15 @@ function generate (spec, common) {
       options = {}
     }
 
+    // promises support
+    if (callback == null) {
+      return new Promise((resolve, reject) => {
+        ${safeWords(name)}(params, options, (err, body) => {
+          err ? reject(err) : resolve(body)
+        })
+      })
+    }
+
     ${genRequiredChecks()}
 
     ${genUrlValidation(paths, api)}