diff --git a/platforms/defaults_test.go b/platforms/defaults_test.go
index 39f2e485d..db8e88ff3 100644
--- a/platforms/defaults_test.go
+++ b/platforms/defaults_test.go
@@ -12,6 +12,7 @@ func TestDefault(t *testing.T) {
 	expected := specs.Platform{
 		OS:           runtime.GOOS,
 		Architecture: runtime.GOARCH,
+		Variant:      cpuVariant,
 	}
 	p := DefaultSpec()
 	if !reflect.DeepEqual(p, expected) {