diff --git a/tests/data/test428 b/tests/data/test428
index fbb714f5c8..4c5c7edc35 100644
--- a/tests/data/test428
+++ b/tests/data/test428
@@ -29,14 +29,6 @@ Funny-head: yesyes
 #
 # Client-side
 <client>
-
-# For unknown reasons, a number of CI jobs on Appveyor keep returning NULL to
-# getenv() for the blank environment variable which makes the test fail.
-# Unfortunately, this makes me disable the test completely on Windows.
-
-<features>
-!win32
-</features>
 <server>
 http
 </server>