diff --git a/Source/Core/Core/HW/DSPHLE/UCodes/AXStructs.h b/Source/Core/Core/HW/DSPHLE/UCodes/AXStructs.h
index 701d692e1c..8bc62d6154 100644
--- a/Source/Core/Core/HW/DSPHLE/UCodes/AXStructs.h
+++ b/Source/Core/Core/HW/DSPHLE/UCodes/AXStructs.h
@@ -10,7 +10,7 @@ namespace DSP::HLE
 struct VolumeData
 {
   u16 volume;
-  u16 volume_delta;
+  s16 volume_delta;
 };
 
 struct PBMixer