diff --git a/test/test_events_be.py b/test/test_events_be.py
index d911ee1..92f9e43 100644
--- a/test/test_events_be.py
+++ b/test/test_events_be.py
@@ -6,7 +6,7 @@ sys.path.insert(0, os.path.normpath(os.path.join(__file__, '../..')))
 import unittest
 from Xlib.protocol import request, event
 from . import BigEndianTest as EndianTest
-from . import DummyDisplay
+from . import DummyDisplay, tohex
 
 dummy_display = DummyDisplay()
 
diff --git a/test/test_requests_be.py b/test/test_requests_be.py
index e41ccfc..bf37c87 100644
--- a/test/test_requests_be.py
+++ b/test/test_requests_be.py
@@ -6,7 +6,7 @@ sys.path.insert(0, os.path.normpath(os.path.join(__file__, '../..')))
 import unittest
 from Xlib.protocol import request, event
 from . import BigEndianTest as EndianTest
-from . import DummyDisplay
+from . import DummyDisplay, tohex
 
 dummy_display = DummyDisplay()