diff --git a/pkg/obiseq/biosequence.go b/pkg/obiseq/biosequence.go
index f0b2a56..f9a1c0a 100644
--- a/pkg/obiseq/biosequence.go
+++ b/pkg/obiseq/biosequence.go
@@ -99,7 +99,6 @@ func MakeBioSequence(id string,
 	bs.SetId(id)
 	bs.SetSequence(sequence)
 	bs.SetDefinition(definition)
-	bs.AnnotationsUnlock()
 	return bs
 }