diff --git a/modules/audio_device/ios/audio_device_utility_ios.cc b/modules/audio_device/ios/audio_device_utility_ios.cc
index 673246d..3362817 100644
--- a/modules/audio_device/ios/audio_device_utility_ios.cc
+++ b/modules/audio_device/ios/audio_device_utility_ios.cc
@@ -27,8 +27,9 @@
 AudioDeviceUtilityIOS::~AudioDeviceUtilityIOS() {
     WEBRTC_TRACE(kTraceMemory, kTraceAudioDevice, _id,
                  "%s destroyed", __FUNCTION__);
-    CriticalSectionScoped lock(&_critSect);
-
+    {
+        CriticalSectionScoped lock(&_critSect);
+    }
     delete &_critSect;
 }