diff --git a/bareon/drivers/deploy/generic.py b/bareon/drivers/deploy/generic.py
index c7d0f3b..96b0536 100644
--- a/bareon/drivers/deploy/generic.py
+++ b/bareon/drivers/deploy/generic.py
@@ -505,7 +505,7 @@ class PartitionPolicyClean(AbstractPartitionPolicy):
         lu.pvremove_all()
 
     def _handle_disk(self, disk):
-        gdisk = block_device.GDisk(disk.dev)
+        gdisk = block_device.SGDisk(disk.dev)
 
         gdisk.zap()
         try:
diff --git a/bareon/utils/block_device.py b/bareon/utils/block_device.py
index 2c6be71..2c86d1f 100644
--- a/bareon/utils/block_device.py
+++ b/bareon/utils/block_device.py
@@ -32,7 +32,7 @@ from bareon.utils import utils
 LOG = logging.getLogger(__name__)
 
 
-class GDisk(object):
+class SGDisk(object):
     def __init__(self, dev):
         self.dev = dev
 
@@ -60,7 +60,7 @@ class GDisk(object):
             output = utils.execute(
                 'sgdisk', '--info', '{}'.format(partition.index),
                 self.dev)[0]
-            guid = _GDiskInfo(output).guid
+            guid = _SGDiskInfo(output).guid
         return guid
 
 
@@ -510,7 +510,7 @@ class Disk(BlockDevicePayload, AbstractStorage):
     @classmethod
     def new_by_scan(cls, dev, partitions=True):
         output = utils.execute('sgdisk', '--print', dev)[0]
-        disk_info = _GDiskPrint(output)
+        disk_info = _SGDiskPrint(output)
 
         disk_block = _BlockDevice(
             dev, disk_info.sectors, disk_info.sector_size)
@@ -530,7 +530,7 @@ class Disk(BlockDevicePayload, AbstractStorage):
             output = utils.execute(
                 'sgdisk', '--info', '{}'.format(listing_info.index),
                 disk_block.dev)[0]
-            detailed_info = _GDiskInfo(output)
+            detailed_info = _SGDiskInfo(output)
 
             dev = disk_block.device_by_index(listing_info.index)
             block = _BlockDevice(
@@ -971,7 +971,7 @@ class _BlockDevice(object):
         return any('boot sector' in x for x in records)
 
 
-class _GDiskMessage(object):
+class _SGDiskMessage(object):
     _payload_field_match_rules = ()
     _payload_field_converts = {}
     _payload_mandatory_fields = frozenset()
@@ -1092,7 +1092,7 @@ class _GDiskMessage(object):
         return chars.pop() == '*'
 
 
-class _GDiskPrint(_GDiskMessage):
+class _SGDiskPrint(_SGDiskMessage):
     _payload_field_match_rules = (
         re.compile(r'^[Dd]isk\s+(?P<disk>/dev/[A-Za-z][A-Za-z0-9]+): '
                    r'(?P<sectors>\d+) sectors'),
@@ -1127,7 +1127,7 @@ class _GDiskPrint(_GDiskMessage):
     align = 1
 
     def __init__(self, data):
-        super(_GDiskPrint, self).__init__(data)
+        super(_SGDiskPrint, self).__init__(data)
 
         table_format = 'gpt'
         if self._notice:
@@ -1168,7 +1168,7 @@ class _GDiskPrint(_GDiskMessage):
         return partitions
 
 
-class _GDiskInfo(_GDiskMessage):
+class _SGDiskInfo(_SGDiskMessage):
     _payload_field_match_rules = (
         re.compile(r'^[Pp]artition\s+unique\s+GUID:\s*(?P<guid>\S+)$'),
         re.compile(r'^[Ff]irst\s+sector:\s+(?P<begin>\d+)\s+\('),
@@ -1189,7 +1189,7 @@ class _GDiskInfo(_GDiskMessage):
     guid = begin = end = size = attributes = None
 
     def __init__(self, data):
-        super(_GDiskInfo, self).__init__(data)
+        super(_SGDiskInfo, self).__init__(data)
 
         for field, value in self._payload.items():
             setattr(self, field, value)