diff --git a/ldapjs/index-b.js b/ldapjs/index-b.js
index f2aa764..85b1cb4 100644
--- a/ldapjs/index-b.js
+++ b/ldapjs/index-b.js
@@ -1,4 +1,8 @@
-var ldapClient = ldap.createClient({url:'ldaps://srv-dc.vbn-gmbh.local:636'}, function (err){
+const ldap = require('ldapjs');
+
+xvar ldapClient = ldap.createClient({
+    url:'ldaps://srv-dc.vbn-gmbh.local:636'
+}, function (err){
   if (err) {
     console.log('Failed');
     process.exit(1);
diff --git a/ldapjs/index-c.js b/ldapjs/index-c.js
index 9b335e8..943ac01 100644
--- a/ldapjs/index-c.js
+++ b/ldapjs/index-c.js
@@ -1,3 +1,5 @@
+const ldap = require('ldapjs');
+
 var ldapClient = ldap.createClient({url:'ldaps://srv-dc.vbn-gmbh.local:636'}, function (err){
   if (err) {
     console.log('Failed');
diff --git a/ldapjs/index-d.js b/ldapjs/index-d.js
index 6fa8baf..3f63b08 100644
--- a/ldapjs/index-d.js
+++ b/ldapjs/index-d.js
@@ -11,7 +11,7 @@ client.on('connectError', (err) => {
 
 client.bind('cn=Begerad\, Stefan', 'secret', (err) => {
     assert.ifError(err);
-    console.error('Error?!');
+    console.error('Bind error?!');
 });
 
 const opts = {
@@ -39,3 +39,8 @@ client.search('o=example', opts, (err, res) => {
     console.log('status: ' + result.status);
   });
 });
+
+client.unbind((err) => {
+    assert.ifError(err);
+    console.error('Unbind error?!');
+});