diff --git a/activesupport/lib/active_support/gzip.rb b/activesupport/lib/active_support/gzip.rb
index fddbfb0ab7..62f9c9aa2e 100644
--- a/activesupport/lib/active_support/gzip.rb
+++ b/activesupport/lib/active_support/gzip.rb
@@ -6,9 +6,9 @@ module ActiveSupport
   module Gzip
     class Stream < StringIO
       def initialize(*)
-         super
-         set_encoding "BINARY" if "".encoding_aware?
-       end
+        super
+        set_encoding "BINARY" if "".encoding_aware?
+      end
       def close; rewind; end
     end
 
@@ -26,4 +26,4 @@ module ActiveSupport
       output.string
     end
   end
-end
\ No newline at end of file
+end