diff --git a/internal/util/indexparamcheck/conf_adapter_test.go b/internal/util/indexparamcheck/conf_adapter_test.go
index 00a9c42562..3eab31e7bf 100644
--- a/internal/util/indexparamcheck/conf_adapter_test.go
+++ b/internal/util/indexparamcheck/conf_adapter_test.go
@@ -65,6 +65,7 @@ func TestBaseConfAdapter_CheckTrain(t *testing.T) {
 	}
 }
 
+// IVFConfAdapter checks if an ivf index can be built.
 func TestIVFConfAdapter_CheckTrain(t *testing.T) {
 	validParams := map[string]string{
 		DIM:    strconv.Itoa(128),