diff --git a/ihm_validation/mmcif_io.py b/ihm_validation/mmcif_io.py
index 96694851..de3dc46f 100644
--- a/ihm_validation/mmcif_io.py
+++ b/ihm_validation/mmcif_io.py
@@ -150,7 +150,7 @@ def get_ranked_id_list(self) -> list:
                     k = ('PDB ID', pdb_id)
                     ids.append(k)
 
-                if pdbdev_id is not None:
+                if pdb_dev_id is not None:
                     k = ('PDB-Dev ID', pdb_dev_id)
                     ids.append(k)