diff --git a/modules/img/base/pymod/export_image_handle.cc b/modules/img/base/pymod/export_image_handle.cc
index b85817f32ea97efbd0a5ff9921ccce9b1fd4a02e..1c6481b8750bbcd411444d2630b712a050057de5 100644
--- a/modules/img/base/pymod/export_image_handle.cc
+++ b/modules/img/base/pymod/export_image_handle.cc
@@ -28,7 +28,6 @@ using namespace boost::python;
 #include <ost/message.hh>
 #include <ost/img/algorithm.hh>
 #include <ost/img/image.hh>
-#include <ost/img/function.hh>
 #include "wrap_extent_iterator.hh"
 
 using namespace ost::img;
diff --git a/modules/img/base/pymod/export_image_list.cc b/modules/img/base/pymod/export_image_list.cc
index 50fc5a941ea7108a1271763ab1f602f8135fa14b..f1fb6a6cfa26dc251f03887b89998f2101a00003 100644
--- a/modules/img/base/pymod/export_image_list.cc
+++ b/modules/img/base/pymod/export_image_list.cc
@@ -29,7 +29,6 @@ using namespace boost::python;
 #include <ost/img/algorithm.hh>
 #include <ost/img/image.hh>
 #include <ost/img/image_list.hh>
-#include <ost/img/function.hh>
 
 using namespace ost::img;
 using namespace ost;
diff --git a/modules/img/base/src/image_state/image_state_base.hh b/modules/img/base/src/image_state/image_state_base.hh
index 385c8903ab61d562a4171634cae9fd2cd2d93717..3a58a7c4d362e3f54a76c721760e11cd8ab3b611 100644
--- a/modules/img/base/src/image_state/image_state_base.hh
+++ b/modules/img/base/src/image_state/image_state_base.hh
@@ -30,7 +30,6 @@
 #include "image_state_base_fw.hh"
 
 #include <ost/base.hh>
-#include <ost/img/function.hh>
 
 #include "image_state_visitor_fw.hh"
 #include "type_fw.hh"
diff --git a/modules/img/base/src/paste_impl.cc b/modules/img/base/src/paste_impl.cc
index 243ca43b223a26296b46c7450f5b8933b941d667..77ea06c961347eef137d70f54d32c7c89b4f5943 100644
--- a/modules/img/base/src/paste_impl.cc
+++ b/modules/img/base/src/paste_impl.cc
@@ -25,7 +25,6 @@
 #include "paste_impl.hh"
 
 #include "image_state/binop.hh"
-#include "function.hh"
 #include "image.hh"
 
 namespace ost { namespace img { namespace detail {