diff --git a/wrap/io_trimesh/import_obj.h b/wrap/io_trimesh/import_obj.h
index e6905780..48fc2230 100644
--- a/wrap/io_trimesh/import_obj.h
+++ b/wrap/io_trimesh/import_obj.h
@@ -402,7 +402,7 @@ static int Open( OpenMeshType &m, const char * filename, Info &oi)
 				}
 				
 				// verifying validity of vertex indices
-				vector<int> tmp = ff.v;
+				std::vector<int> tmp = ff.v;
 				std::sort(tmp.begin(),tmp.end());
 				std::unique(tmp.begin(),tmp.end());
 				if(tmp.size() != ff.v.size())