diff --git a/ip.go b/ip.go
index f44a82448..155cf4991 100644
--- a/ip.go
+++ b/ip.go
@@ -226,7 +226,7 @@ func ExtractIPFromRealIPHeader(options ...TrustOption) IPExtractor {
 	checker := newIPChecker(options)
 	return func(req *http.Request) string {
 		realIP := req.Header.Get(HeaderXRealIP)
-        remoteIP := extractIP(req)
+		remoteIP := extractIP(req)
 		if checker.trust(remoteIP) && realIP != "" {
 			realIP = strings.TrimPrefix(realIP, "[")
 			realIP = strings.TrimSuffix(realIP, "]")