diff --git a/src/playsim/p_mobj.cpp b/src/playsim/p_mobj.cpp
index 87c58a071..d3a8eeb34 100644
--- a/src/playsim/p_mobj.cpp
+++ b/src/playsim/p_mobj.cpp
@@ -1361,6 +1361,8 @@ void DActorModelData::Serialize(FSerializer& arc)
 		("animationIDs", animationIDs)
 		("modelFrameGenerators", modelFrameGenerators)
 		("flags", flags)
+		("overrideFlagsSet", overrideFlagsSet)
+		("overrideFlagsClear", overrideFlagsClear)
 		("curAnim", curAnim)
 		("prevAnim", prevAnim);
 }