diff --git a/internal/util/indexparamcheck/conf_adapter_test.go b/internal/util/indexparamcheck/conf_adapter_test.go
index 2d2331de1a..a3810e33ef 100644
--- a/internal/util/indexparamcheck/conf_adapter_test.go
+++ b/internal/util/indexparamcheck/conf_adapter_test.go
@@ -293,6 +293,7 @@ func TestNSGConfAdapter_CheckTrain(t *testing.T) {
 	}
 }
 
+// HNSWConfAdapter checks if a hnsw index can be built.
 func TestHNSWConfAdapter_CheckTrain(t *testing.T) {
 	validParams := map[string]string{
 		DIM:            strconv.Itoa(128),