diff --git a/tests/filterpyflakes.py b/tests/filterpyflakes.py
index 1a3a08b5d4d572c9f7ef9a3e9592ff4b15014abf_dGVzdHMvZmlsdGVycHlmbGFrZXMucHk=..80e3002cd29e7ecbd76ab3dcf1d0eeffb3e78485_dGVzdHMvZmlsdGVycHlmbGFrZXMucHk= 100755
--- a/tests/filterpyflakes.py
+++ b/tests/filterpyflakes.py
@@ -11,7 +11,7 @@
 for line in sys.stdin:
     # We blacklist tests that are too noisy for us
     pats = [
-        r"undefined name '(WindowsError|memoryview)'",
+        r"undefined name 'WindowsError'",
         r"redefinition of unused '[^']+' from line",
     ]
 
@@ -33,5 +33,5 @@
     sys.stdout.write(line)
 print()
 
-# self test of "undefined name" detection for other than 'memoryview'
+# self test of "undefined name" detection
 if False:
@@ -37,3 +37,2 @@
 if False:
-    print(memoryview)
     print(undefinedname)
diff --git a/tests/test-check-pyflakes.t b/tests/test-check-pyflakes.t
index 1a3a08b5d4d572c9f7ef9a3e9592ff4b15014abf_dGVzdHMvdGVzdC1jaGVjay1weWZsYWtlcy50..80e3002cd29e7ecbd76ab3dcf1d0eeffb3e78485_dGVzdHMvdGVzdC1jaGVjay1weWZsYWtlcy50 100644
--- a/tests/test-check-pyflakes.t
+++ b/tests/test-check-pyflakes.t
@@ -10,5 +10,5 @@
   > -X mercurial/pycompat.py -X contrib/python-zstandard \
   > 2>/dev/null \
   > | xargs pyflakes 2>/dev/null | "$TESTDIR/filterpyflakes.py"
-  tests/filterpyflakes.py:39: undefined name 'undefinedname'
+  tests/filterpyflakes.py:38: undefined name 'undefinedname'