diff --git a/ip/resolver/basic_http/service.go b/ip/resolver/basic_http/service.go
index 7f6fe89..af03405 100644
--- a/ip/resolver/basic_http/service.go
+++ b/ip/resolver/basic_http/service.go
@@ -43,5 +43,9 @@ func (s Service) Lookup() (net.IP, error) {
 	// Trim spaces and stuff.
 	ip_str := strings.TrimSpace(string(body))
 
-	return net.ParseIP(ip_str), err
+	ip := net.ParseIP(ip_str)
+	if ip == nil {
+		err = fmt.Errorf("Failed to parse ip: %s", ip_str)
+	}
+	return ip, err
 }