diff --git a/lib/internal/crypto/keygen.js b/lib/internal/crypto/keygen.js
index f646f436f7678a..0a4bde77fa369b 100644
--- a/lib/internal/crypto/keygen.js
+++ b/lib/internal/crypto/keygen.js
@@ -60,7 +60,7 @@ function generateKeyPair(type, options, callback) {
     callback.call(wrap, null, pubkey, privkey);
   };
 
-  handleError(impl, wrap);
+  handleError(impl(wrap));
 }
 
 Object.defineProperty(generateKeyPair, customPromisifyArgs, {
@@ -70,11 +70,10 @@ Object.defineProperty(generateKeyPair, customPromisifyArgs, {
 
 function generateKeyPairSync(type, options) {
   const impl = check(type, options);
-  return handleError(impl);
+  return handleError(impl());
 }
 
-function handleError(impl, wrap) {
-  const ret = impl(wrap);
+function handleError(ret) {
   if (ret === undefined)
     return; // async