diff --git a/libs/JSystem/include/JSystem/JAudio2/JASChannel.h b/libs/JSystem/include/JSystem/JAudio2/JASChannel.h
index f8579c4be3..77bfb45966 100644
--- a/libs/JSystem/include/JSystem/JAudio2/JASChannel.h
+++ b/libs/JSystem/include/JSystem/JAudio2/JASChannel.h
@@ -17,17 +17,7 @@ namespace JASDsp {
 }
 
 #if TARGET_PC
-/**
- * An object to manage the lifetime of the sample data pointed to by JASChannel.
- *
- * JASChannel can (optionally) accept an unique_ptr to an object to this type,
- * in which case it will be destroyed when the JASChannel is done.
- *
- * @see JASChannel::mSampleReference
- */
-struct JASSampleDataReference {
-    virtual ~JASSampleDataReference() = default;
-};
+#include "JSystem/JAudio2/JASSampleDataReference.h"
 #endif
 
 /**
diff --git a/libs/JSystem/include/JSystem/JAudio2/JASSampleDataReference.h b/libs/JSystem/include/JSystem/JAudio2/JASSampleDataReference.h
new file mode 100644
index 0000000000..d196b4f34c
--- /dev/null
+++ b/libs/JSystem/include/JSystem/JAudio2/JASSampleDataReference.h
@@ -0,0 +1,18 @@
+#ifndef DUSKLIGHT_JASSAMPLEDATAREFERENCE_H
+#define DUSKLIGHT_JASSAMPLEDATAREFERENCE_H
+
+#if TARGET_PC
+/**
+ * An object to manage the lifetime of the sample data pointed to by JASChannel.
+ *
+ * JASChannel can (optionally) accept an unique_ptr to an object to this type,
+ * in which case it will be destroyed when the JASChannel is done.
+ *
+ * @see JASChannel::mSampleReference
+ */
+struct JASSampleDataReference {
+    virtual ~JASSampleDataReference() = default;
+};
+#endif
+
+#endif  // DUSKLIGHT_JASSAMPLEDATAREFERENCE_H
diff --git a/libs/JSystem/include/JSystem/JAudio2/JASWaveInfo.h b/libs/JSystem/include/JSystem/JAudio2/JASWaveInfo.h
index 45874f5aa7..a092f7450e 100644
--- a/libs/JSystem/include/JSystem/JAudio2/JASWaveInfo.h
+++ b/libs/JSystem/include/JSystem/JAudio2/JASWaveInfo.h
@@ -5,7 +5,7 @@
 #include <memory>
 
 #if TARGET_PC
-struct JASSampleDataReference;
+#include "JSystem/JAudio2/JASSampleDataReference.h"
 #endif
 
 struct JASWaveArc;
diff --git a/src/dusk/mods/svc/audio_res/audio_res.hpp b/src/dusk/mods/svc/audio_res/audio_res.hpp
index 4ae3e0dd1c..ce46db0721 100644
--- a/src/dusk/mods/svc/audio_res/audio_res.hpp
+++ b/src/dusk/mods/svc/audio_res/audio_res.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <memory>
+#include <mutex>
 #include "JSystem/JAudio2/JASChannel.h"
 #include "JSystem/JAudio2/JASWaveInfo.h"
 #include "absl/container/flat_hash_map.h"