diff --git a/contrib/python3-whitelist b/contrib/python3-whitelist
--- a/contrib/python3-whitelist
+++ b/contrib/python3-whitelist
@@ -20,6 +20,7 @@
 test-automv.t
 test-backout.t
 test-backwards-remove.t
+test-bad-extension.t
 test-bad-pull.t
 test-basic.t
 test-bdiff.py