diff --git a/vcg/space/index/index2D/grid_closest_22.h b/vcg/space/index/index2D/grid_closest_2d.h
similarity index 100%
rename from vcg/space/index/index2D/grid_closest_22.h
rename to vcg/space/index/index2D/grid_closest_2d.h
diff --git a/vcg/space/index/index2D/grid_static_ptr_2d.h b/vcg/space/index/index2D/grid_static_ptr_2d.h
index f51a151b..134ad86e 100644
--- a/vcg/space/index/index2D/grid_static_ptr_2d.h
+++ b/vcg/space/index/index2D/grid_static_ptr_2d.h
@@ -30,8 +30,8 @@
 
 #include <vcg/space/box2.h>
 #include <vcg/space/line2.h>
-#include <vcg/space/index/index2D/grid_util_2D.h>
-#include <vcg/space/index/index2D/grid_closest_2D.h>
+#include <vcg/space/index/index2D/grid_util_2d.h>
+#include <vcg/space/index/index2D/grid_closest_2d.h>
 
 namespace vcg {
 
diff --git a/vcg/space/index/index2D/grid_util_2D.h b/vcg/space/index/index2D/grid_util_2d.h
similarity index 100%
rename from vcg/space/index/index2D/grid_util_2D.h
rename to vcg/space/index/index2D/grid_util_2d.h