diff --git a/wadsrc/static/zscript/constants.zs b/wadsrc/static/zscript/constants.zs
index 0b9a85c84ec..1ef1a7bb709 100644
--- a/wadsrc/static/zscript/constants.zs
+++ b/wadsrc/static/zscript/constants.zs
@@ -732,6 +732,9 @@ enum EPSPLayers
 	PSP_STRIFEHANDS = -1,
 	PSP_WEAPON = 1,
 	PSP_FLASH = 1000,
+	PSP_TARGETCENTER = int.max - 2,
+	PSP_TARGETLEFT,
+	PSP_TARGETRIGHT
 };
 
 enum EInputFlags