diff --git a/boost/gil/extension/toolbox/hsv.hpp b/boost/gil/extension/toolbox/hsv.hpp
index ad7a8a347..ba12cbd14 100644
--- a/boost/gil/extension/toolbox/hsv.hpp
+++ b/boost/gil/extension/toolbox/hsv.hpp
@@ -14,7 +14,6 @@
 /// \author Christian Henning \n
 ////////////////////////////////////////////////////////////////////////////////////////
 
-#include <boost/cast.hpp>
 #include <boost/gil/gil_all.hpp>
 
 namespace boost { namespace gil {