diff --git a/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp b/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
index 8cb3f367f7..24e5bfda7b 100644
--- a/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
+++ b/modules/juce_audio_devices/native/juce_mac_CoreAudio.cpp
@@ -1555,7 +1555,7 @@ public:
                 newCallback->audioDeviceAboutToStart (this);
 
             const ScopedLock sl (callbackLock);
-            previousCallback = std::exchange (callback, newCallback);
+            previousCallback = callback = newCallback;
         }
     }