diff --git a/mrdna/segmentmodel.py b/mrdna/segmentmodel.py
index e25ef8956b375be93e5ca2410f655bd912377b61..8867774d865c5388b676a81201d91994f95024bc 100644
--- a/mrdna/segmentmodel.py
+++ b/mrdna/segmentmodel.py
@@ -2479,7 +2479,7 @@ class SegmentModel(ArbdModel):
             for b in beads:
                 for l in b.locations:
                     if l.connection is not None:
-                        if l.connection.type_ == "crossover":
+                        if l.connection.type_ in ("crossover","terminal_crossover"):
                             count += 1
             return count