diff --git a/src/audio_core/audio_manager.cpp b/src/audio_core/audio_manager.cpp
index e23af0ef5b..2acde668e0 100644
--- a/src/audio_core/audio_manager.cpp
+++ b/src/audio_core/audio_manager.cpp
@@ -3,6 +3,7 @@
 
 #include "audio_core/audio_manager.h"
 #include "core/core.h"
+#include "core/hle/service/audio/errors.h"
 
 namespace AudioCore {
 
diff --git a/src/audio_core/audio_manager.h b/src/audio_core/audio_manager.h
index 6c76c36a74..abf077de44 100644
--- a/src/audio_core/audio_manager.h
+++ b/src/audio_core/audio_manager.h
@@ -10,7 +10,8 @@
 #include <thread>
 
 #include "audio_core/audio_event.h"
-#include "core/hle/service/audio/errors.h"
+
+union Result;
 
 namespace AudioCore {