diff --git a/modelling/pymod/_afdb_modelling.py b/modelling/pymod/_afdb_modelling.py
index 243abc35bab7c02ed2029f2f6e51a7ad49a6d4e4..a273d8d80276aed9aaa3cd793831d3b1cc718b15 100644
--- a/modelling/pymod/_afdb_modelling.py
+++ b/modelling/pymod/_afdb_modelling.py
@@ -609,7 +609,7 @@ def _TransferBFactors(messages, aln, model):
     # regular expression that finds stuff like: filling A.PRO59-(ESRQG)-A.ILE65
     # and directly makes stem residue numbers (59 and 65) available as groups
     cname = model.chains[0].GetName()
-    pat = f"filling {cname}\.[A-Z]+([0-9]*)-\([A-Z]+\)-{cname}\.[A-Z]+([0-9]+)"
+    pat = f"ling {cname}\.[A-Z]+([0-9]*)-\([A-Z]+\)-{cname}\.[A-Z]+([0-9]+)"
     for m in messages:
         if m.startswith("Resolved"):
             match = re.search(pat, m)