diff --git a/actions/ost-compare-structures b/actions/ost-compare-structures
index 82489c26e7439c3bbc71947846038bd1ab326583..0318a826c17e1a3e313783ba30f49a1cc3011ca3 100644
--- a/actions/ost-compare-structures
+++ b/actions/ost-compare-structures
@@ -893,7 +893,7 @@ def _Process(model, reference, args, model_format, reference_format):
         out["oligo_gdtts"] = _RoundOrNone(scorer.gdtts)
         out["oligo_gdtha"] = _RoundOrNone(scorer.gdtha)
         out["rmsd"] = _RoundOrNone(scorer.rmsd)
-        data = scorer.transform.data
+        data = scorer.rigid_transform.data
         out["transform"] = [data[i:i + 4] for i in range(0, len(data), 4)]
 
     if args.patch_scores: