diff --git a/helpdesk/migrations/0018_auto_20181017_1737.py b/helpdesk/migrations/0018_auto_20181017_1737.py
new file mode 100644
index 00000000..803d3370
--- /dev/null
+++ b/helpdesk/migrations/0018_auto_20181017_1737.py
@@ -0,0 +1,65 @@
+# Generated by Django 2.1.2 on 2018-10-17 17:37
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('helpdesk', '0017_default_owner_on_delete_null'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='kbitem',
+            name='voted_by',
+            field=models.ManyToManyField(to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AlterField(
+            model_name='followup',
+            name='public',
+            field=models.BooleanField(blank=True, default=False, help_text='Public tickets are viewable by the submitter and all staff, but non-public tickets can only be seen by staff.', verbose_name='Public'),
+        ),
+        migrations.AlterField(
+            model_name='ignoreemail',
+            name='keep_in_mailbox',
+            field=models.BooleanField(blank=True, default=False, help_text='Do you want to save emails from this address in the mailbox? If this is unticked, emails from this address will be deleted.', verbose_name='Save Emails in Mailbox?'),
+        ),
+        migrations.AlterField(
+            model_name='queue',
+            name='allow_email_submission',
+            field=models.BooleanField(blank=True, default=False, help_text='Do you want to poll the e-mail box below for new tickets?', verbose_name='Allow E-Mail Submission?'),
+        ),
+        migrations.AlterField(
+            model_name='queue',
+            name='allow_public_submission',
+            field=models.BooleanField(blank=True, default=False, help_text='Should this queue be listed on the public submission form?', verbose_name='Allow Public Submission?'),
+        ),
+        migrations.AlterField(
+            model_name='queue',
+            name='email_box_ssl',
+            field=models.BooleanField(blank=True, default=False, help_text='Whether to use SSL for IMAP or POP3 - the default ports when using SSL are 993 for IMAP and 995 for POP3.', verbose_name='Use SSL for E-Mail?'),
+        ),
+        migrations.AlterField(
+            model_name='savedsearch',
+            name='shared',
+            field=models.BooleanField(blank=True, default=False, help_text='Should other users see this query?', verbose_name='Shared With Other Users?'),
+        ),
+        migrations.AlterField(
+            model_name='ticket',
+            name='on_hold',
+            field=models.BooleanField(blank=True, default=False, help_text='If a ticket is on hold, it will not automatically be escalated.', verbose_name='On Hold'),
+        ),
+        migrations.AlterField(
+            model_name='ticketcc',
+            name='can_update',
+            field=models.BooleanField(blank=True, default=False, help_text='Can this CC login and update the ticket?', verbose_name='Can Update Ticket?'),
+        ),
+        migrations.AlterField(
+            model_name='ticketcc',
+            name='can_view',
+            field=models.BooleanField(blank=True, default=False, help_text='Can this CC login to view the ticket details?', verbose_name='Can View Ticket?'),
+        ),
+    ]
diff --git a/helpdesk/models.py b/helpdesk/models.py
index db22bd81..a2311b96 100644
--- a/helpdesk/models.py
+++ b/helpdesk/models.py
@@ -1060,6 +1060,7 @@ class KBItem(models.Model):
     An item within the knowledgebase. Very straightforward question/answer
     style system.
     """
+    voted_by= models.ManyToManyField(settings.AUTH_USER_MODEL)
     category = models.ForeignKey(
         KBCategory,
         on_delete=models.CASCADE,
diff --git a/helpdesk/views/kb.py b/helpdesk/views/kb.py
index a7e7a1e8..5e66d6ab 100644
--- a/helpdesk/views/kb.py
+++ b/helpdesk/views/kb.py
@@ -46,9 +46,11 @@ def vote(request, item):
     item = get_object_or_404(KBItem, pk=item)
     vote = request.GET.get('vote', None)
     if vote in ('up', 'down'):
-        item.votes += 1
-        if vote == 'up':
-            item.recommendations += 1
-        item.save()
+        if request.user not in item.voted_by: 
+
+            item.votes += 1
+            if vote == 'up':
+                item.recommendations += 1
+            item.save()
 
     return HttpResponseRedirect(item.get_absolute_url())