diff --git a/source/games/duke/src/savegame.cpp b/source/games/duke/src/savegame.cpp
index 95968ef63..ab6ab82da 100644
--- a/source/games/duke/src/savegame.cpp
+++ b/source/games/duke/src/savegame.cpp
@@ -315,6 +315,7 @@ void DDukeActor::Serialize(FSerializer& arc)
 		.Array("temp_data", temp_data, 6)
 		.Array("temo_wall", temp_walls, 2)
 		("temp_angle", temp_angle)
+		("temp_pos", temp_pos)
 		("temp_sect", temp_sect)
 		("uservars", uservars)
 		("flags1", flags1)
diff --git a/source/games/duke/src/spawn.cpp b/source/games/duke/src/spawn.cpp
index dec36d062..e9e168e67 100644
--- a/source/games/duke/src/spawn.cpp
+++ b/source/games/duke/src/spawn.cpp
@@ -161,6 +161,7 @@ bool initspriteforspawn(DDukeActor* act)
 	act->temp_data[0] = act->temp_data[1] = act->temp_data[2] = act->temp_data[3] = act->temp_data[4] = act->temp_data[5] = 0;
 	act->temp_actor = nullptr;
 	act->temp_angle = nullAngle;
+	act->temp_pos = DVector3(0, 0, 0);
 
 	if (wallswitchcheck(act) && (act->spr.cstat & CSTAT_SPRITE_ALIGNMENT_WALL))
 	{
diff --git a/source/games/duke/src/types.h b/source/games/duke/src/types.h
index e82c35ee1..c11e5ff4f 100644
--- a/source/games/duke/src/types.h
+++ b/source/games/duke/src/types.h
@@ -63,6 +63,7 @@ public:
 	walltype* temp_walls[2]; // SE20 + SE128
 	sectortype* temp_sect, *actorstayput;
 	DAngle temp_angle; // only used by TRIPBOMB
+	DVector3 temp_pos; // used by TRIPBOMB and SE_26.
 
 	TObjPtr<DDukeActor*> temp_actor, seek_actor;