diff --git a/x/sqlite/deleteattachment.go b/x/sqlite/deleteattachment.go
index f3f404e6a..6c771ff99 100644
--- a/x/sqlite/deleteattachment.go
+++ b/x/sqlite/deleteattachment.go
@@ -20,7 +20,7 @@ import (
 	"github.com/go-kivik/kivik/v4/internal"
 )
 
-func (d *db) DeleteAttachment(ctx context.Context, docID, filename string, options driver.Options) (string, error) {
+func (d *db) DeleteAttachment(ctx context.Context, docID, _ string, options driver.Options) (string, error) {
 	opts := newOpts(options)
 	if rev := opts.rev(); rev == "" {
 		return "", &internal.Error{Status: http.StatusConflict, Message: "conflict"}