diff --git a/library/Phue/Group.php b/library/Phue/Group.php
index 695c869..14951aa 100644
--- a/library/Phue/Group.php
+++ b/library/Phue/Group.php
@@ -12,6 +12,7 @@
 use Phue\Command\SetLightState;
 use Phue\Command\SetGroupAttributes;
 use Phue\Command\SetGroupState;
+use Phue\Helper\ColorConversion;
 
 /**
  * Group object