diff --git a/arbitrile.cpp b/arbitrile.cpp
index 8046599a..ec8fde22 100644
--- a/arbitrile.cpp
+++ b/arbitrile.cpp
@@ -2007,7 +2007,10 @@ EX void convert() {
     sh.vertices.clear();
     sh.connections.clear();
     sh.cycle_length = id.modval;
-    sh.orig_id = arcm::get_graphical_id(s);
+    if(arcm::in())
+      sh.orig_id = arcm::get_graphical_id(s);
+    else
+      sh.orig_id = shvid(s);
     sh.repeat_value = t / id.modval;
     sh.flags = hr::pseudohept(s) ? arcm::sfPH : 0;
     #if CAP_ARCM