diff --git a/src/playsim/p_effect.cpp b/src/playsim/p_effect.cpp
index 2f9d03781..12e86a423 100644
--- a/src/playsim/p_effect.cpp
+++ b/src/playsim/p_effect.cpp
@@ -1222,6 +1222,7 @@ void DZSprite::Serialize(FSerializer& arc)
 		("flipy", bYFlip)
 		("dontinterpolate", bDontInterpolate)
 		("addlightlevel", bAddLightLevel)
+		("lightlevel", LightLevel)
 		("flags", Flags);
 		
 }