diff --git a/apps/sample/hashing_2D/test_hash2D.cpp b/apps/sample/hashing_2D/test_hash2D.cpp
index 9da30073..a7043ee7 100644
--- a/apps/sample/hashing_2D/test_hash2D.cpp
+++ b/apps/sample/hashing_2D/test_hash2D.cpp
@@ -24,8 +24,8 @@
 #include <time.h>
 #include <vcg/space/distance2.h>
 #include<vcg/space/segment2.h>
-#include<vcg/space/index/index2D/grid_static_ptr_2D.h>
-#include<vcg/space/index/index2D/grid_closest_2D.h>
+#include<vcg/space/index/index2D/grid_static_ptr_2d.h>
+#include<vcg/space/index/index2D/grid_closest_2d.h>
 #include<vcg/space/intersection2.h>
 
 typedef double MyScalarType;
diff --git a/apps/sample/hashing_2D/test_hash2D.pro b/apps/sample/hashing_2D/test_hash2d.pro
similarity index 50%
rename from apps/sample/hashing_2D/test_hash2D.pro
rename to apps/sample/hashing_2D/test_hash2d.pro
index f7bf08d4..8e5dd26a 100644
--- a/apps/sample/hashing_2D/test_hash2D.pro
+++ b/apps/sample/hashing_2D/test_hash2d.pro
@@ -2,14 +2,14 @@
 # Automatically generated by qmake (2.00a) ven 24. giu 14:14:20 2005
 ######################################################################
 
-TARGET = trimesh_join
+TARGET = test_hash2d
 DEPENDPATH += . 
 INCLUDEPATH += . ../../..
 CONFIG += console stl
 TEMPLATE = app
-HEADERS += ../../../vcg/space/index/index2D/grid_static_ptr_2D.h\
-           ../../../vcg/space/index/index2D/closest_2D.h\
-           ../../../vcg/space/index/index2D/space_iterators_2D.h\
-           ../../../vcg/space/index/index2D/grid_closest_2D.h
+HEADERS += ../../../vcg/space/index/index2D/grid_static_ptr_2d.h\
+           ../../../vcg/space/index/index2D/closest_2d.h\
+           ../../../vcg/space/index/index2D/space_iterators_2d.h\
+           ../../../vcg/space/index/index2D/grid_closest_2d.h
 
-SOURCES += test_hash2D.cpp
+SOURCES += test_hash2d.cpp
diff --git a/vcg/space/index/index2D/closest_2D.h b/vcg/space/index/index2D/closest_2d.h
similarity index 100%
rename from vcg/space/index/index2D/closest_2D.h
rename to vcg/space/index/index2D/closest_2d.h
diff --git a/vcg/space/index/index2D/grid_closest_2D.h b/vcg/space/index/index2D/grid_closest_2D.h
index f04fa75d..d2e39d23 100644
--- a/vcg/space/index/index2D/grid_closest_2D.h
+++ b/vcg/space/index/index2D/grid_closest_2D.h
@@ -24,7 +24,7 @@
 #ifndef __VCGLIB_GRID_CLOSEST_2D
 #define __VCGLIB_GRID_CLOSEST_2D
 
-#include <vcg/space/index/index2D/space_iterators_2D.h>
+#include <vcg/space/index/index2D/space_iterators_2d.h>
 #include <vcg/space/intersection2.h>
 
 namespace vcg{
diff --git a/vcg/space/index/index2D/grid_static_ptr_2D.h b/vcg/space/index/index2D/grid_static_ptr_2d.h
similarity index 100%
rename from vcg/space/index/index2D/grid_static_ptr_2D.h
rename to vcg/space/index/index2D/grid_static_ptr_2d.h
diff --git a/vcg/space/index/index2D/space_iterators_2D.h b/vcg/space/index/index2D/space_iterators_2d.h
similarity index 100%
rename from vcg/space/index/index2D/space_iterators_2D.h
rename to vcg/space/index/index2D/space_iterators_2d.h
diff --git a/vcg/space/index/index2D/spatial_hashing_2D.h b/vcg/space/index/index2D/spatial_hashing_2d.h
similarity index 99%
rename from vcg/space/index/index2D/spatial_hashing_2D.h
rename to vcg/space/index/index2D/spatial_hashing_2d.h
index 1e60fee7..57981397 100644
--- a/vcg/space/index/index2D/spatial_hashing_2D.h
+++ b/vcg/space/index/index2D/spatial_hashing_2d.h
@@ -24,8 +24,8 @@
 #ifndef VCGLIB_SPATIAL_HASHING_2D
 #define VCGLIB_SPATIAL_HASHING_2D
 
-#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>
 //#include <map>
 #include <vector>
 #include <algorithm>