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-rw-r--r--lib/unicorn.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/unicorn.rb b/lib/unicorn.rb
index 88391f6..0916891 100644
--- a/lib/unicorn.rb
+++ b/lib/unicorn.rb
@@ -630,7 +630,7 @@ module Unicorn
     end
 
     def redirect_io(io, path)
-      File.open(path, 'a') { |fp| io.reopen(fp) } if path
+      File.open(path, 'ab') { |fp| io.reopen(fp) } if path
       io.sync = true
     end