diff --git a/wrap/gl/gl_mesh_attributes_info.h b/wrap/gl/gl_mesh_attributes_info.h
index 4150309e..53a32e59 100644
--- a/wrap/gl/gl_mesh_attributes_info.h
+++ b/wrap/gl/gl_mesh_attributes_info.h
@@ -65,7 +65,7 @@ namespace vcg
 
             ATT_NAMES(unsigned int att)
             {
-                if ((att < ATT_VERTPOSITION) || (att >= ATT_NAMES::enumArity()))
+                if (att >= ATT_NAMES::enumArity())
                     throw Exception("Out of range value\n");
                 else
                     _val = att;
@@ -309,7 +309,7 @@ namespace vcg
             INT_ATT_NAMES(unsigned int att)
                 :ATT_NAMES()
             {
-                if ((att < INT_ATT_NAMES::ATT_VERTPOSITION) || (att >= INT_ATT_NAMES::enumArity()))
+                if (att >= INT_ATT_NAMES::enumArity())
                     throw Exception("Out of range value\n");
                 else
                     _val = att;
@@ -429,4 +429,4 @@ namespace vcg
     };
 }
 
-#endif
\ No newline at end of file
+#endif
diff --git a/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h b/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
index efe1737a..7d245569 100644
--- a/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
+++ b/wrap/gl/gl_mesh_attributes_multi_viewer_bo_manager.h
@@ -1910,7 +1910,7 @@ namespace vcg
         void setBufferPointer( INT_ATT_NAMES boname) const
         {
             unsigned int ii = boname;
-            if ((ii < INT_ATT_NAMES::ATT_VERTPOSITION) || (ii >= INT_ATT_NAMES::enumArity()))
+            if (ii >= INT_ATT_NAMES::enumArity())
                 return;
             GLBufferObject* cbo = _bo[ii];
             if (cbo == NULL)
@@ -1948,7 +1948,7 @@ namespace vcg
         void disableClientState( INT_ATT_NAMES boname,const RendAtts& req) const
         {
 
-            if ((boname < INT_ATT_NAMES::ATT_VERTPOSITION) || (boname >= INT_ATT_NAMES::enumArity()))
+            if (boname >= INT_ATT_NAMES::enumArity())
                 return;
 
             switch(boname)