diff --git a/examples/bitmap-bytes/main.go b/examples/bitmap-bytes/main.go
index 1d2295d..e942599 100644
--- a/examples/bitmap-bytes/main.go
+++ b/examples/bitmap-bytes/main.go
@@ -18,14 +18,14 @@ func main() {
 	bs := robotgo.ToBitmapBytes(bitMap)
 	img, err := bmp.Decode(bytes.NewReader(bs))
 	if err != nil {
-		log.Println(err)
+		log.Println("bmp.Decode err is: ", err)
 		return
 	}
 
 	b := new(bytes.Buffer)
 	err = jpeg.Encode(b, img, &jpeg.Options{Quality: 20})
 	if err != nil {
-		log.Println(err)
+		log.Println("jpeg.Encode err is: ", err)
 		return
 	}