diff --git a/lib/auth/default_current_user_provider.rb b/lib/auth/default_current_user_provider.rb
index 06781518f39..7a2eaeebb8a 100644
--- a/lib/auth/default_current_user_provider.rb
+++ b/lib/auth/default_current_user_provider.rb
@@ -11,7 +11,7 @@ class Auth::DefaultCurrentUserProvider
   USER_API_CLIENT_ID ||= "HTTP_USER_API_CLIENT_ID"
   API_KEY_ENV ||= "_DISCOURSE_API"
   USER_API_KEY_ENV ||= "_DISCOURSE_USER_API"
-  TOKEN_COOKIE ||= "_t"
+  TOKEN_COOKIE ||= ENV['DISCOURSE_TOKEN_COOKIE'] || "_t"
   PATH_INFO ||= "PATH_INFO"
   COOKIE_ATTEMPTS_PER_MIN ||= 10
   BAD_TOKEN ||= "_DISCOURSE_BAD_TOKEN"