diff --git a/arbitrile.cpp b/arbitrile.cpp
index 3405c1fd..16427b4d 100644
--- a/arbitrile.cpp
+++ b/arbitrile.cpp
@@ -26,6 +26,8 @@ struct shape {
 
 struct arbi_tiling {
 
+  int order;
+
   vector<shape> shapes;
   string name;
   string comment;
@@ -76,6 +78,7 @@ void load(const string& fname) {
     s += c;
     }
   auto& c = current;
+  c.order++;
   c.shapes.clear();
   c.name = unnamed;
   c.comment = "";
diff --git a/geometry.cpp b/geometry.cpp
index df8fba09..c241047d 100644
--- a/geometry.cpp
+++ b/geometry.cpp
@@ -880,7 +880,7 @@ EX void check_cgi() {
 
   if(arcm::in()) V("ARCM", arcm::current.symbol);
 
-  if(arb::in()) V("ARB", arb::current.name);
+  if(arb::in()) V("ARB", its(arb::current.order));
   
   if(cryst) V("CRYSTAL", its(ginf[gCrystal].sides) + its(ginf[gCrystal].vertex));