diff --git a/lib/logger.rb b/lib/logger.rb
index 2697f0f..de06131 100644
--- a/lib/logger.rb
+++ b/lib/logger.rb
@@ -366,7 +366,7 @@ def fatal!; self.level = FATAL; end
   # +datetime_format+::
   #   Date and time format. Default value is '%Y-%m-%d %H:%M:%S'.
   # +binmode+::
-  #   Use binany mode on the log device. Defaul value is false.
+  #   Use binany mode on the log device. Default value is false.
   # +shift_period_suffix+::
   #   The log file suffix format for +daily+, +weekly+ or +monthly+ rotation.
   #   Default is '%Y%m%d'.