diff --git a/modules/audio_device/ios/audio_device_ios.mm b/modules/audio_device/ios/audio_device_ios.mm
index f8aae2efe6..7e3d8f2181 100644
--- a/modules/audio_device/ios/audio_device_ios.mm
+++ b/modules/audio_device/ios/audio_device_ios.mm
@@ -846,6 +846,7 @@ bool AudioDeviceIOS::InitPlayOrRecord() {
   if (![session beginWebRTCSession:&error]) {
     [session unlockForConfiguration];
     RTCLogError(@"Failed to begin WebRTC session: %@", error.localizedDescription);
+    audio_unit_.reset();
     return false;
   }
 
@@ -857,6 +858,7 @@ bool AudioDeviceIOS::InitPlayOrRecord() {
       // audio session during or after a Media Services failure.
       // See AVAudioSessionErrorCodeMediaServicesFailed for details.
       [session unlockForConfiguration];
+      audio_unit_.reset();
       return false;
     }
     SetupAudioBuffersForActiveAudioSession();
diff --git a/sdk/objc/Framework/Native/src/audio/audio_device_ios.mm b/sdk/objc/Framework/Native/src/audio/audio_device_ios.mm
index 053ffdb3fd..bb0a352f7d 100644
--- a/sdk/objc/Framework/Native/src/audio/audio_device_ios.mm
+++ b/sdk/objc/Framework/Native/src/audio/audio_device_ios.mm
@@ -861,6 +861,7 @@ bool AudioDeviceIOS::InitPlayOrRecord() {
   if (![session beginWebRTCSession:&error]) {
     [session unlockForConfiguration];
     RTCLogError(@"Failed to begin WebRTC session: %@", error.localizedDescription);
+    audio_unit_.reset();
     return false;
   }
 
@@ -872,6 +873,7 @@ bool AudioDeviceIOS::InitPlayOrRecord() {
       // audio session during or after a Media Services failure.
       // See AVAudioSessionErrorCodeMediaServicesFailed for details.
       [session unlockForConfiguration];
+      audio_unit_.reset();
       return false;
     }
     SetupAudioBuffersForActiveAudioSession();