diff --git a/bindings/go/pkg/notmuch.go b/bindings/go/pkg/notmuch.go
index e065b547..8faf3bb1 100644
--- a/bindings/go/pkg/notmuch.go
+++ b/bindings/go/pkg/notmuch.go
@@ -24,6 +24,7 @@ const (
     STATUS_NULL_POINTER
     STATUS_TAG_TOO_LONG
     STATUS_UNBALANCED_FREEZE_THAW
+    STATUS_UNBALANCED_ATOMIC
 
     STATUS_LAST_STATUS
 )