diff --git a/modules/gui/src/data_viewer/strategies_fw.hh b/modules/gui/src/data_viewer/strategies_fw.hh
index 5678eb337f776f98de9905756d0f40205eb6a577..f66a4e66a9cce121e1e433ebf272944842f9d974 100644
--- a/modules/gui/src/data_viewer/strategies_fw.hh
+++ b/modules/gui/src/data_viewer/strategies_fw.hh
@@ -18,7 +18,7 @@
 // 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //------------------------------------------------------------------------------
 
-#ifndef IMG_GUI_STRATEGIES_FW_H
+#ifndef IMG_GUI_STRATEGIES_FW_HH
 #define IMG_GUI_STRATEGIES_FW_HH
 
 #include <boost/shared_ptr.hpp>
diff --git a/modules/img/alg/src/alg_transform.hh b/modules/img/alg/src/alg_transform.hh
index 5e461d95c32a5cc682781b8afc8736dd969d6db1..3729437992ad56c8d94cf1a0615a857db370d6ce 100644
--- a/modules/img/alg/src/alg_transform.hh
+++ b/modules/img/alg/src/alg_transform.hh
@@ -19,7 +19,7 @@
 //------------------------------------------------------------------------------
 
 #ifndef IMG_ALG_TRANSFORM_ALG_TRANSFORM_HH
-#define IMG_ALG_TRANSFORM_ALG_TRANSFORM__HH
+#define IMG_ALG_TRANSFORM_ALG_TRANSFORM_HH
 
 #include <ost/img/image_state.hh>
 #include <ost/img/value_util.hh>