diff --git a/qt/aqt/pinnedmodules.py b/qt/aqt/pinnedmodules.py
index 49cc020e1..eee5660b0 100644
--- a/qt/aqt/pinnedmodules.py
+++ b/qt/aqt/pinnedmodules.py
@@ -26,13 +26,18 @@ import socks
 # legacy compat
 import anki.storage
 import anki.sync
-from anki.utils import isLin, isWin
+from anki.utils import isLin, isMac, isWin
 
-# external module access in Windows
 if isWin:
+    # external module access
     import pythoncom
     import pywintypes
     import win32com
 
 if isLin:
+    # file locking
     import fcntl
+
+if isMac:
+    # recording
+    import PyQt5.QtMultimedia
diff --git a/qt/aqt/sound.py b/qt/aqt/sound.py
index 7f1a91616..d65cb4622 100644
--- a/qt/aqt/sound.py
+++ b/qt/aqt/sound.py
@@ -507,8 +507,9 @@ class PyAudioThreadedRecorder(threading.Thread):
         self.finish = False
         if isMac and qtminor > 12:
             # trigger permission prompt
-            # pylint: disable=undefined-variable
-            QAudioDeviceInfo.defaultInputDevice()  # type: ignore
+            from PyQt5.QtMultimedia import QAudioDeviceInfo
+
+            QAudioDeviceInfo.defaultInputDevice()
 
     def run(self) -> None:
         chunk = 1024