diff --git a/tests/common.py b/tests/common.py
index 22af8ecb8a3b4..462fcb3ed792c 100644
--- a/tests/common.py
+++ b/tests/common.py
@@ -246,7 +246,7 @@ def fire_service_discovered(hass, service, info):
 def load_fixture(filename):
     """Load a fixture."""
     path = os.path.join(os.path.dirname(__file__), 'fixtures', filename)
-    with open(path) as fptr:
+    with open(path, encoding='utf-8') as fptr:
         return fptr.read()