diff --git a/internal/backend/frostfs/frostfs.go b/internal/backend/frostfs/frostfs.go
index fbe7ad909..688c17bd4 100644
--- a/internal/backend/frostfs/frostfs.go
+++ b/internal/backend/frostfs/frostfs.go
@@ -45,11 +45,11 @@ func NewFactory() location.Factory {
 	return location.NewHTTPBackendFactory("frostfs", ParseConfig, location.NoPassword, Create, Open)
 }
 
-func Open(ctx context.Context, cfg Config, rt http.RoundTripper) (backend.Backend, error) {
+func Open(ctx context.Context, cfg Config, _ http.RoundTripper) (backend.Backend, error) {
 	return open(ctx, cfg)
 }
 
-func Create(ctx context.Context, cfg Config, rt http.RoundTripper) (backend.Backend, error) {
+func Create(ctx context.Context, cfg Config, _ http.RoundTripper) (backend.Backend, error) {
 	return open(ctx, cfg)
 }
 
@@ -81,7 +81,7 @@ func open(ctx context.Context, cfg Config) (backend.Backend, error) {
 	}, nil
 }
 
-func (b *Backend) IsPermanentError(err error) bool {
+func (b *Backend) IsPermanentError(error) bool {
 	return true
 }