diff --git a/wadsrc/static/zscript/actors/player/player.zs b/wadsrc/static/zscript/actors/player/player.zs
index c6e3a370e..0b7723a3b 100644
--- a/wadsrc/static/zscript/actors/player/player.zs
+++ b/wadsrc/static/zscript/actors/player/player.zs
@@ -2544,6 +2544,7 @@ class PSprite : Object native play
 	native bool bPowDouble;
 	native bool bCVarFast;
 	native bool bFlip;	
+	native bool bMirror;
 	
 	native void SetState(State newstate, bool pending = false);