diff --git a/gui/choices.py b/gui/choices.py
index 4b7df30b0a1d..9621716b6a1a 100644
--- a/gui/choices.py
+++ b/gui/choices.py
@@ -1098,6 +1098,15 @@ def __iter__(self):
     ('E1000', _('Intel e82545 (e1000)')),
     ('VIRTIO', _('VirtIO')),    
 )
+VNC_RESOLUTION = (
+    ('1920x1080', _('1920x1080')),
+    ('1400x1050', _('1400x1050')),
+    ('1280x1024', _('1280x1024')),
+    ('1280x960', _('1280x960')),
+    ('1024x768', _('1024x768')),
+    ('800x600', _('800x600')),
+    ('640x480', _('640x480')),
+)
 
 VM_DISKMODETYPES = (
     ('AHCI', _('AHCI')),
diff --git a/gui/freeadmin/static/lib/js/freeadmin.js b/gui/freeadmin/static/lib/js/freeadmin.js
index d8bb8a708c2c..5bbf36ec9ead 100755
--- a/gui/freeadmin/static/lib/js/freeadmin.js
+++ b/gui/freeadmin/static/lib/js/freeadmin.js
@@ -1344,6 +1344,7 @@ require([
         var nic_mac = registry.byId("id_NIC_mac").domNode.parentNode.parentNode;
         var vnc_wait = registry.byId("id_VNC_wait").domNode.parentNode.parentNode;
         var vnc_port = registry.byId("id_VNC_port").domNode.parentNode.parentNode;
+        var vnc_resolution = registry.byId("id_VNC_resolution").domNode.parentNode.parentNode;
 
         domStyle.set(cdrom_path, "display", "none");
         domStyle.set(disk_mode, "display", "none");
@@ -1352,6 +1353,7 @@ require([
         domStyle.set(nic_mac, "display", "none");
         domStyle.set(vnc_wait, "display", "none");
         domStyle.set(vnc_port, "display", "none");
+        domStyle.set(vnc_resolution, "display", "none");
 
         if(dtype.get('value') == 'DISK') {
           domStyle.set(disk_mode, "display", "");
@@ -1362,6 +1364,7 @@ require([
           domStyle.set(nic_type, "display", "");
           domStyle.set(nic_mac, "display", "");
         } else if(dtype.get('value') == 'VNC') {
+          domStyle.set(vnc_resolution, "display", "");
           domStyle.set(vnc_port, "display", "");
           domStyle.set(vnc_wait, "display", "");
         }
diff --git a/gui/vm/forms.py b/gui/vm/forms.py
index 7e4369101587..fdcabb9579fc 100644
--- a/gui/vm/forms.py
+++ b/gui/vm/forms.py
@@ -105,6 +105,12 @@ class DeviceForm(ModelForm):
         validators=[RegexValidator("^([0-9a-fA-F]{2}([::]?|$)){6}$", "Invalid MAC format.")],
         initial='00:a0:98:FF:FF:FF',
     )
+    VNC_resolution = forms.ChoiceField(
+        label=_('Resolution'),
+        choices=choices.VNC_RESOLUTION,
+        required=False,
+        initial='1024x768',
+    )
     VNC_port = forms.CharField(
         label=_('VNC port'),
         required=False,
@@ -151,6 +157,7 @@ def __init__(self, *args, **kwargs):
             elif self.instance.dtype == 'VNC':
                 self.fields['VNC_wait'].initial = self.instance.attributes.get('wait')
                 self.fields['VNC_port'].initial = self.instance.attributes.get('vnc_port')
+                self.fields['VNC_resolution'].initial = self.instance.attributes.get('vnc_resolution')
 
     def clean(self):
         vm = self.cleaned_data.get('vm')
@@ -185,11 +192,13 @@ def save(self, *args, **kwargs):
                 obj.attributes = {
                     'wait': self.cleaned_data['VNC_wait'],
                     'vnc_port': self.cleaned_data['VNC_port'],
+                    'vnc_resolution': self.cleaned_data['VNC_resolution'],
                 }
             else:
                 self._errors['dtype'] = self.error_class([_('VNC is only allowed for UEFI')])
                 self.cleaned_data.pop('VNC_port', None)
                 self.cleaned_data.pop('VNC_wait', None)
+                self.cleaned_data.pop('VNC_resolution', None)
                 return obj
 
         obj.save()
diff --git a/src/middlewared/middlewared/plugins/vm.py b/src/middlewared/middlewared/plugins/vm.py
index ceb1594d2102..4a511e6aab71 100644
--- a/src/middlewared/middlewared/plugins/vm.py
+++ b/src/middlewared/middlewared/plugins/vm.py
@@ -116,10 +116,13 @@ def run(self):
                 else:
                     wait = ''
 
+                vnc_resolution = device['attributes'].get('vnc_resolution').split('x')
+                width = vnc_resolution[0]
+                height = vnc_resolution[1]
                 vnc_port = int(device['attributes'].get('vnc_port', 5900 + self.vm['id']))
 
                 args += [
-                    '-s', '29,fbuf,tcp=0.0.0.0:{},w=1024,h=768,{}'.format(vnc_port, wait),
+                    '-s', '29,fbuf,tcp=0.0.0.0:{},w={},h={},{}'.format(vnc_port, width, height, wait),
                     '-s', '30,xhci,tablet',
                 ]