--- json_parser_write.hpp.old	2012-07-20 06:07:24.533283368 +0900
+++ json_parser_write.hpp	2012-07-20 06:20:10.609256326 +0900
@@ -93,7 +93,8 @@
                     stream << Ch(',');
                 if (pretty) stream << Ch('\n');
             }
-            stream << Str(4 * indent, Ch(' ')) << Ch(']');
+            if (pretty) stream << Str(4 * indent, Ch(' '));
+            stream << Ch(']');
 
         }
         else