diff --git a/oauthproxy.go b/oauthproxy.go
index 8d781770..11860a95 100644
--- a/oauthproxy.go
+++ b/oauthproxy.go
@@ -545,7 +545,7 @@ func (p *OAuthProxy) IsValidRedirect(redirect string) bool {
 
 		for _, domain := range p.whitelistDomains {
 			domainHostname, domainPort := splitHostPort(strings.TrimLeft(domain, "."))
-			if err != nil || domainHostname == "" {
+			if domainHostname == "" {
 				continue
 			}