diff --git a/dbutil/database.go b/dbutil/database.go
index 8c4e1e1..c4b77a5 100644
--- a/dbutil/database.go
+++ b/dbutil/database.go
@@ -199,7 +199,7 @@ func (db *Database) Close() error {
 	if db.ReadOnlyDB != nil {
 		err2 := db.ReadOnlyDB.Close()
 		if err == nil {
-			err = fmt.Errorf("closing read-only db failed: %w", err)
+			err = fmt.Errorf("closing read-only db failed: %w", err2)
 		} else {
 			err = fmt.Errorf("%w (closing read-only db also failed: %v)", err, err2)
 		}