diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index ef8c2fbab..c2b42b5cd 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -718,7 +718,7 @@ void movecrane(DDukeActor *actor, int crane)
 		spri->picnum++;
 		if (spri->picnum == (crane + 2))
 		{
-			int p = checkcursectnums(t[1]);
+			int p = checkcursectnums(&sector[t[1]]);
 			if (p >= 0 && ps[p].on_ground)
 			{
 				actor->SetActiveCrane(true);
@@ -1126,7 +1126,7 @@ void movetouchplate(DDukeActor* actor, int plate)
 			else
 			{
 				sectp->floorz += sectp->extra;
-				p = checkcursectnums(s->sectnum);
+				p = checkcursectnums(s->sector());
 				if (p >= 0) ps[p].pos.z += sectp->extra;
 			}
 		}
@@ -1140,7 +1140,7 @@ void movetouchplate(DDukeActor* actor, int plate)
 			else
 			{
 				sectp->floorz -= sectp->extra;
-				p = checkcursectnums(s->sectnum);
+				p = checkcursectnums(s->sector());
 				if (p >= 0)
 					ps[p].pos.z -= sectp->extra;
 			}
@@ -1150,7 +1150,7 @@ void movetouchplate(DDukeActor* actor, int plate)
 
 	if (t[5] == 1) return;
 
-	p = checkcursectnums(s->sectnum);
+	p = checkcursectnums(s->sector());
 	if (p >= 0 && (ps[p].on_ground || s->ang == 512))
 	{
 		if (t[0] == 0 && !check_activator_motion(s->lotag))
diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index e41d4cc27..5122bf1ae 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -2239,7 +2239,7 @@ void movetransports_d(void)
 						case 0:
 							if (onfloorz)
 							{
-								if (spr2->statnum == STAT_PROJECTILE || (checkcursectnums(spr->sectnum) == -1 && checkcursectnums(Owner->s->sectnum) == -1))
+								if (spr2->statnum == STAT_PROJECTILE || (checkcursectnums(spr->sector()) == -1 && checkcursectnums(Owner->s->sector()) == -1))
 								{
 									spr2->x += (Owner->s->x - spr->x);
 									spr2->y += (Owner->s->y - spr->y);
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index a4d0148e9..a6c128f0e 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -1842,7 +1842,7 @@ void movetransports_r(void)
 						case ST_0_NO_EFFECT:
 							if (onfloorz)
 							{
-								if (checkcursectnums(spr->sectnum) == -1 && checkcursectnums(Owner->s->sectnum) == -1)
+								if (checkcursectnums(spr->sector()) == -1 && checkcursectnums(Owner->s->sector()) == -1)
 								{
 									spr2->x += (Owner->s->x - spr->x);
 									spr2->y += (Owner->s->y - spr->y);
diff --git a/source/games/duke/src/inlines.h b/source/games/duke/src/inlines.h
index bb1836504..ab0b64579 100644
--- a/source/games/duke/src/inlines.h
+++ b/source/games/duke/src/inlines.h
@@ -73,11 +73,11 @@ inline bool wallswitchcheck(DDukeActor* s)
 	return !!(gs.tileinfo[s->s->picnum].flags & TFLAG_WALLSWITCH);
 }
 
-inline int checkcursectnums(int se)
+inline int checkcursectnums(sectortype* se)
 {
 	int i;
 	for(i=connecthead;i>=0;i=connectpoint2[i])
-		if(ps[i].GetActor() && ps[i].GetActor()->s->sectnum == se ) return i;
+		if(ps[i].GetActor() && ps[i].GetActor()->s->sector() == se ) return i;
 	return -1;
 }