diff --git a/src/tests/client/test-client.py b/src/tests/client/test-client.py
index 70516f913e..42c2a9dc32 100755
--- a/src/tests/client/test-client.py
+++ b/src/tests/client/test-client.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# coding: utf-8
 
 from __future__ import print_function