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-rw-r--r--guides/source/configuring.md2
1 files changed, 1 insertions, 1 deletions
diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index 5baab8a4b5..622f79a50f 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -110,7 +110,7 @@ numbers. New applications filter out passwords by adding the following `config.f
* `config.log_formatter` defines the formatter of the Rails logger. This option defaults to an instance of `ActiveSupport::Logger::SimpleFormatter` for all modes except production, where it defaults to `Logger::Formatter`.
-* `config.log_level` defines the verbosity of the Rails logger. This option defaults to `:debug` for all environments.
+* `config.log_level` defines the verbosity of the Rails logger. This option defaults to `:debug` for all environments. The available log levels are: :debug, :info, :warn, :error, :fatal, and :unknown.
* `config.log_tags` accepts a list of methods that the `request` object responds to. This makes it easy to tag log lines with debug information like subdomain and request id - both very helpful in debugging multi-user production applications.