1 files changed, 0 insertions, 1 deletions
diff --git a/alc/mixer/defs.h b/alc/mixer/defs.h
index 69042ea4..a34fba26 100644
--- a/alc/mixer/defs.h
+++ b/alc/mixer/defs.h
@@ -9,7 +9,6 @@
 
 struct HrtfChannelState;
 struct HrtfFilter;
-union InterpState;
 struct MixHrtfFilter;
 
 using uint = unsigned int;