diff --git a/pyHS100/smartdevice.py b/pyHS100/smartdevice.py
index 5d68b87d..753d8ffb 100644
--- a/pyHS100/smartdevice.py
+++ b/pyHS100/smartdevice.py
@@ -86,6 +86,9 @@ class SmartDevice(object):
         :return: list of features
         :rtype: list
         """
+        if "feature" not in self.sys_info:
+            return None
+
         features = self.sys_info['feature'].split(':')
 
         for feature in features: