diff --git a/README.md b/README.md
index 55529cf..0d4c458 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,7 @@ Usage of ./godns:
 
 Supported provider(s):
 * Cloudflare
+* HE.net
 
 To enable the `IPv6` mode of GoDNS, you only need two steps:
 * Set the `ip_type` as `IPv6`, and make sure the `ipv6_url` is configured.
diff --git a/utils.go b/utils.go
index c229ac1..8ec6974 100644
--- a/utils.go
+++ b/utils.go
@@ -173,7 +173,7 @@ func GetIPOnline(configuration *Settings) (string, error) {
 	var response *http.Response
 	var err error
 
-	if configuration.IPType == "" || configuration.IPType == IPV4 {
+	if configuration.IPType == "" || strings.ToUpper(configuration.IPType) == IPV4 {
 		response, err = client.Get(configuration.IPUrl)
 	} else {
 		response, err = client.Get(configuration.IPV6Url)