diff --git a/Changes.md b/Changes.md
index 7e1521b7..00b0fc5b 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,3 +1,8 @@
+HEAD
+-----------
+
+- log rotation via USR2 didn't close the old logger [#1008]
+
 2.12.4
 -----------
 
diff --git a/lib/sidekiq/logging.rb b/lib/sidekiq/logging.rb
index 183d5fb3..03739974 100644
--- a/lib/sidekiq/logging.rb
+++ b/lib/sidekiq/logging.rb
@@ -26,9 +26,11 @@ module Sidekiq
     end
 
     def self.initialize_logger(log_target = STDOUT)
+      oldlogger = @logger
       @logger = Logger.new(log_target)
       @logger.level = Logger::INFO
       @logger.formatter = Pretty.new
+      oldlogger.close if oldlogger && !$TESTING # don't want to close testing's STDOUT logging
       @logger
     end