diff --git a/lib/mail-drop.js b/lib/mail-drop.js
index 38535c1..ea4816c 100644
--- a/lib/mail-drop.js
+++ b/lib/mail-drop.js
@@ -244,9 +244,7 @@ class MailDrop {
                     });
                 });
             } else {
-                let encryptedStream = envelope.encrypt(dkimStream, eResult => {
-                    return eResult;
-                });
+                let encryptedStream = envelope.encrypt(dkimStream, eResult => eResult);
 
                 let messageHashStream = new StreamHash({
                     algo: 'md5'