diff --git a/cmd/mcla_wasm/utils.go b/cmd/mcla_wasm/utils.go
index 59ec443..8961ffe 100644
--- a/cmd/mcla_wasm/utils.go
+++ b/cmd/mcla_wasm/utils.go
@@ -30,7 +30,7 @@ func asJsValue(v any) (res js.Value) {
 		reflect.Float32, reflect.Float64:
 		return js.ValueOf(v)
 	}
-	println("Marshaling in asJsValue:", v)
+	fmt.Printf("Marshaling in asJsValue: %T %#v\n", v, v)
 	buf, err := json.Marshal(v)
 	if err != nil {
 		panic(err)