diff --git a/src/net/tools/naive/naive_proxy_bin.cc b/src/net/tools/naive/naive_proxy_bin.cc
index 48491fc81c..04631732c4 100644
--- a/src/net/tools/naive/naive_proxy_bin.cc
+++ b/src/net/tools/naive/naive_proxy_bin.cc
@@ -63,7 +63,6 @@ constexpr int kListenBackLog = 512;
 constexpr int kDefaultMaxSocketsPerPool = 256;
 constexpr int kDefaultMaxSocketsPerGroup = 255;
 constexpr int kExpectedMaxUsers = 8;
-constexpr char kDefaultHostName[] = "example";
 constexpr net::NetworkTrafficAnnotationTag kTrafficAnnotation =
     net::DefineNetworkTrafficAnnotation("naive", "");
 
@@ -227,18 +226,6 @@ bool ParseCommandLineFlags(Params* params) {
   if (line.HasSwitch("host-resolver-rules")) {
     params->host_resolver_rules =
         line.GetSwitchValueASCII("host-resolver-rules");
-  } else {
-    // SNI should only contain DNS hostnames not IP addresses per RFC 6066.
-    if (url.HostIsIPAddress()) {
-      GURL::Replacements replacements;
-      replacements.SetHostStr(kDefaultHostName);
-      params->proxy_url =
-          url::SchemeHostPort(url.ReplaceComponents(replacements)).Serialize();
-      LOG(INFO) << "Using '" << kDefaultHostName << "' as the hostname for "
-                << url.host();
-      params->host_resolver_rules =
-          std::string("MAP ") + kDefaultHostName + " " + url.host();
-    }
   }
 
   if (line.HasSwitch("log")) {