diff --git a/chrome/browser/chromeos/login/oobe_browsertest.cc b/chrome/browser/chromeos/login/oobe_browsertest.cc
index d3f5f2a9274781..2e0a4d6fab6934 100644
--- a/chrome/browser/chromeos/login/oobe_browsertest.cc
+++ b/chrome/browser/chromeos/login/oobe_browsertest.cc
@@ -37,7 +37,7 @@ class OobeTest : public InProcessBrowserTest {
     command_line->AppendSwitch(chromeos::switches::kForceLoginManagerInTests);
     command_line->AppendSwitchASCII(chromeos::switches::kLoginProfile, "user");
     command_line->AppendSwitchASCII(
-        chromeos::switches::kAuthExtensionPath, "gaia_auth");
+        ::switches::kAuthExtensionPath, "gaia_auth");
     fake_gaia_.Initialize();
   }
 
diff --git a/chromeos/chromeos_switches.cc b/chromeos/chromeos_switches.cc
index 1e0c2c1ee85549..8d79cad42bf52c 100644
--- a/chromeos/chromeos_switches.cc
+++ b/chromeos/chromeos_switches.cc
@@ -15,9 +15,6 @@ const char kAppOemManifestFile[]            = "app-mode-oem-manifest";
 // Possible values: parallel|postpone. Default: parallel.
 const char kAshWebUIInit[]                  = "ash-webui-init";
 
-// Enables overriding the path for the default authentication extension.
-const char kAuthExtensionPath[]             = "auth-ext-path";
-
 // Forces the stub implementation of dbus clients.
 const char kDbusStub[] = "dbus-stub";
 
diff --git a/chromeos/chromeos_switches.h b/chromeos/chromeos_switches.h
index 077f5e498c3842..058979458364ef 100644
--- a/chromeos/chromeos_switches.h
+++ b/chromeos/chromeos_switches.h
@@ -22,7 +22,6 @@ namespace switches {
 // Please keep alphabetized.
 CHROMEOS_EXPORT extern const char kAppOemManifestFile[];
 CHROMEOS_EXPORT extern const char kAshWebUIInit[];
-CHROMEOS_EXPORT extern const char kAuthExtensionPath[];
 CHROMEOS_EXPORT extern const char kDbusStub[];
 CHROMEOS_EXPORT extern const char kDerelictDetectionTimeout[];
 CHROMEOS_EXPORT extern const char kDerelictIdleTimeout[];