diff --git a/libobs/audio-monitoring/osx/coreaudio-output.c b/libobs/audio-monitoring/osx/coreaudio-output.c
index 3e2bcd1cd..458b23cc2 100644
--- a/libobs/audio-monitoring/osx/coreaudio-output.c
+++ b/libobs/audio-monitoring/osx/coreaudio-output.c
@@ -1,5 +1,5 @@
 #include <AudioUnit/AudioUnit.h>
-#include <AudioToolBox/AudioQueue.h>
+#include <AudioToolbox/AudioQueue.h>
 #include <CoreFoundation/CFString.h>
 #include <CoreAudio/CoreAudio.h>