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-rw-r--r--lib/unicorn/http_response.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/unicorn/http_response.rb b/lib/unicorn/http_response.rb
index 0d05b2c..f226ef3 100644
--- a/lib/unicorn/http_response.rb
+++ b/lib/unicorn/http_response.rb
@@ -32,7 +32,7 @@ module Unicorn
     # Rack does not set/require a Date: header.  We always override the
     # Connection: and Date: headers no matter what (if anything) our
     # Rack application sent us.
-    SKIP = { 'connection' => true, 'date' => true, 'status' => true }.freeze
+    SKIP = { 'connection' => true, 'date' => true, 'status' => true }
     OUT = [] # :nodoc
 
     def self.write_header(socket, status, headers)