diff --git a/test/test_parsers/test_rst/test_directives/test_tables.py b/test/test_parsers/test_rst/test_directives/test_tables.py
index 2e11131..cf9f097 100755
--- a/test/test_parsers/test_rst/test_directives/test_tables.py
+++ b/test/test_parsers/test_rst/test_directives/test_tables.py
@@ -55,17 +55,6 @@ csv_unknown_url = "'bogus.csv'"
 if sys.version_info < (3, 0):
     csv_unknown_url = "bogus.csv"
 
-
-def null_bytes():
-    with open(utf_16_csv, 'rb') as f:
-        csv_data = f.read()
-    csv_data = unicode(csv_data, 'latin1').splitlines()
-    reader = csv.reader([tables.CSVTable.encode_for_csv(line + '\n')
-                         for line in csv_data])
-    next(reader)
-
-null_bytes_exception = DocutilsTestSupport.exception_data(null_bytes)[0]
-
 totest = {}
 
 totest['table'] = [
@@ -1025,26 +1014,6 @@ u"""\
                good, csv, data
 """ % csv_eod_error_str],
 ["""\
-.. csv-table:: bad encoding
-   :file: %s
-   :encoding: latin-1
-
-(7- and 8-bit text encoded as UTF-16 has lots of null/zero bytes.)
-""" % utf_16_csv,
-"""\
-<document source="test data">
-    <system_message level="3" line="1" source="test data" type="ERROR">
-        <paragraph>
-            Error with CSV data in "csv-table" directive:
-            %s
-        <literal_block xml:space="preserve">
-            .. csv-table:: bad encoding
-               :file: %s
-               :encoding: latin-1
-    <paragraph>
-        (7- and 8-bit text encoded as UTF-16 has lots of null/zero bytes.)
-""" % (null_bytes_exception, utf_16_csv)],
-["""\
 .. csv-table:: good encoding
    :file: %s
    :encoding: utf-16
@@ -1459,6 +1428,38 @@ totest['list-table'] = [
 """],
 ]
 
+if sys.version_info < (3, 11):
+    def null_bytes():
+        with open(utf_16_csv, 'rb') as f:
+            csv_data = f.read()
+        csv_data = unicode(csv_data, 'latin1').splitlines()
+        reader = csv.reader([tables.CSVTable.encode_for_csv(line + '\n')
+                             for line in csv_data])
+        next(reader)
+
+    null_bytes_exception = DocutilsTestSupport.exception_data(null_bytes)[0]
+
+    totest['table'].append(["""\
+.. csv-table:: bad encoding
+   :file: %s
+   :encoding: latin-1
+
+(7- and 8-bit text encoded as UTF-16 has lots of null/zero bytes.)
+""" % utf_16_csv,
+"""\
+<document source="test data">
+    <system_message level="3" line="1" source="test data" type="ERROR">
+        <paragraph>
+            Error with CSV data in "csv-table" directive:
+            %s
+        <literal_block xml:space="preserve">
+            .. csv-table:: bad encoding
+               :file: %s
+               :encoding: latin-1
+    <paragraph>
+        (7- and 8-bit text encoded as UTF-16 has lots of null/zero bytes.)
+""" % (null_bytes_exception, utf_16_csv)])
+
 
 if __name__ == '__main__':
     import unittest