1 files changed, 6 insertions, 6 deletions
diff --git a/lib/logger.rb b/lib/logger.rb
index 5dc108f567..8be1c26664 100644
--- a/lib/logger.rb
+++ b/lib/logger.rb
@@ -268,17 +268,17 @@ class Logger
       @level = severity
     else
       case severity.to_s.downcase
-      when 'debug'.freeze
+      when 'debug'
         @level = DEBUG
-      when 'info'.freeze
+      when 'info'
         @level = INFO
-      when 'warn'.freeze
+      when 'warn'
         @level = WARN
-      when 'error'.freeze
+      when 'error'
         @level = ERROR
-      when 'fatal'.freeze
+      when 'fatal'
         @level = FATAL
-      when 'unknown'.freeze
+      when 'unknown'
         @level = UNKNOWN
       else
         raise ArgumentError, "invalid log level: #{severity}"