diff --git a/lib/tools.js b/lib/tools.js
index 600bf7a0f..6f1959963 100644
--- a/lib/tools.js
+++ b/lib/tools.js
@@ -46,8 +46,10 @@ function encryptPhrase(password, phrase, callback) {
             encrypted += data.toString('hex');
         }
     });
-    cipher.on('end', () => callback(encrypted));
-
+    cipher.on('end', () => {
+        callback(encrypted);
+    });
+    
     cipher.write(phrase);
     cipher.end();
 }
@@ -68,7 +70,9 @@ function decryptPhrase(password, data, callback) {
             console.error(`Cannot decode secret: ${error}`);
             callback(null);
         });
-        decipher.on('end', function () callback(decrypted));
+        decipher.on('end', function () {
+            callback(decrypted);
+        });
 
         decipher.write(data, 'hex');
         decipher.end();