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-rw-r--r--lib/unicorn/app/exec_cgi.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/unicorn/app/exec_cgi.rb b/lib/unicorn/app/exec_cgi.rb
index 67817c8..d0b31f8 100644
--- a/lib/unicorn/app/exec_cgi.rb
+++ b/lib/unicorn/app/exec_cgi.rb
@@ -124,7 +124,7 @@ module Unicorn::App
       else
         tmp = Unicorn::Util.tmpio
 
-        buf = Z.dup
+        buf = Unicorn::Z.dup
         while inp.read(CHUNK_SIZE, buf)
           tmp.syswrite(buf)
         end