Fix #3703
diff --git a/system/libraries/Xmlrpcs.php b/system/libraries/Xmlrpcs.php
index c276844..00d1fec 100644
--- a/system/libraries/Xmlrpcs.php
+++ b/system/libraries/Xmlrpcs.php
@@ -223,7 +223,7 @@
 			$CI =& get_instance();
 			if ($CI->input->method() === 'post')
 			{
-				$data = http_build_query($CI->input->input_stream(NULL, FALSE));
+				$data = $CI->input->raw_input_stream;
 			}
 		}