diff --git a/setup/test.py b/setup/test.py
index 8911ece51d..3c0a2b27c1 100644
--- a/setup/test.py
+++ b/setup/test.py
@@ -41,7 +41,7 @@ class TestImports(unittest.TestCase):
         exclude_packages = {'calibre.devices.mtp.unix.upstream'}
         if not iswindows:
             exclude_modules |= {'calibre.utils.iphlpapi', 'calibre.utils.open_with.windows', 'calibre.devices.winusb'}
-            exclude_packages |= {'calibre.utils.winreg'}
+            exclude_packages |= {'calibre.utils.winreg', 'calibre.utils.windows'}
         if not ismacos:
             exclude_modules.add('calibre.utils.open_with.osx')
         if not islinux:
diff --git a/src/calibre/utils/windows/winsapi.py b/src/calibre/utils/windows/winsapi.py
index c360fb5b23..11a0985f37 100644
--- a/src/calibre/utils/windows/winsapi.py
+++ b/src/calibre/utils/windows/winsapi.py
@@ -2,9 +2,10 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
 
+from calibre_extensions.winsapi import ISpVoice
+
 
 def develop():
-    from calibre_extensions.winsapi import ISpVoice
     from pprint import pprint
     spv = ISpVoice()
     voices = spv.get_all_voices()
@@ -15,7 +16,6 @@ def develop():
 
 def find_tests():
     import unittest
-    from calibre_extensions.winsapi import ISpVoice
 
     class TestSAPI(unittest.TestCase):