diff --git a/cli/command/image/client_test.go b/cli/command/image/client_test.go
index 96e612f252..99244c7864 100644
--- a/cli/command/image/client_test.go
+++ b/cli/command/image/client_test.go
@@ -87,7 +87,7 @@ func (cli *fakeClient) ImageLoad(_ context.Context, input io.Reader, quiet bool)
 	return types.ImageLoadResponse{}, nil
 }
 
-func (cli *fakeClient) ImageList(ctx context.Context, options types.ImageListOptions) ([]types.ImageSummary, error) {
+func (cli *fakeClient) ImageList(_ context.Context, options types.ImageListOptions) ([]types.ImageSummary, error) {
 	if cli.imageListFunc != nil {
 		return cli.imageListFunc(options)
 	}