diff --git a/pytradfri/device.py b/pytradfri/device.py
index 02c246df..e7cd2e6e 100644
--- a/pytradfri/device.py
+++ b/pytradfri/device.py
@@ -150,6 +150,7 @@ def __init__(self, device):
         self.can_set_temp = None
         self.can_set_xy = None
         self.can_set_color = None
+        self.can_combine_commands = None
 
         if ATTR_LIGHT_DIMMER in self.raw[0]:
             self.can_set_dimmer = True
diff --git a/setup.py b/setup.py
index 6c7a8dba..15d8ed9b 100755
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@
 with open(path.join(here, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
 
-VERSION = "5.5"
+VERSION = "5.5.1"
 DOWNLOAD_URL = \
     'https://github.com/ggravlingen/pytradfri/archive/{}.zip'.format(VERSION)