diff --git a/xmlrunner/result.py b/xmlrunner/result.py
index 96fc675..ad444cc 100644
--- a/xmlrunner/result.py
+++ b/xmlrunner/result.py
@@ -91,6 +91,10 @@ def __init__(self, first, second):
         self._first = first
         self._second = second
 
+    @property
+    def encoding(self):
+        return self._first.encoding
+
     def flush(self):
         self._first.flush()
         self._second.flush()