diff --git a/source/build/src/engine.cpp b/source/build/src/engine.cpp
index de3eee557..0b619fdd0 100644
--- a/source/build/src/engine.cpp
+++ b/source/build/src/engine.cpp
@@ -863,7 +863,7 @@ int32_t cansee(int32_t x1, int32_t y1, int32_t z1, int16_t sect1, int32_t x2, in
 
     BFSSearch search(numsectors, sect1);
 
-    for (int dasectnum; (dasectnum = search.GetNext()) != BFSSearch::EOL;)
+    for (unsigned dasectnum; (dasectnum = search.GetNext()) != BFSSearch::EOL;)
     {
         auto const sec = (usectorptr_t)&sector[dasectnum];
         uwallptr_t wal;
diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index ab9e81c57..21a9c6fdf 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -5133,7 +5133,7 @@ int furthestcanseepoint(DDukeActor *actor, DDukeActor* tosee, int* dax, int* day
 		da = abs(hx - s->x) + abs(hy - s->y);
 
 		if (d < da && hitsect)
-			if (cansee(hx, hy, hz, sectnum(hitsect), s->x, s->y, s->z - (16 << 8), s->sectnum))
+			if (cansee(hx, hy, hz, hitsect, s->x, s->y, s->z - (16 << 8), s->sector()))
 			{
 				*dax = hx;
 				*day = hy;
diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index bb69b7398..7a8183d2d 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -3473,7 +3473,7 @@ void handle_se06_d(DDukeActor* actor)
 	DukeStatIterator it(STAT_EFFECTOR);
 	while (auto act2 = it.Next())
 	{
-		if ((act2->s->lotag == 14) && (sh == act2->s->hitag) && (act2->temp_data[0] == t[0])) // sectnum()
+		if ((act2->s->lotag == 14) && (sh == act2->s->hitag) && (act2->temp_data[0] == t[0]))
 		{
 			act2->s->xvel = s->xvel;
 			//if( t[4] == 1 )
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index 171c49530..3e07190d0 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -3439,7 +3439,7 @@ void handle_se06_r(DDukeActor *actor)
 	DukeStatIterator it(STAT_EFFECTOR);
 	while (auto act2 = it.Next())
 	{
-		if ((act2->s->lotag == 14) && (sh == act2->s->hitag) && (act2->temp_data[0] == t[0])) // sectnum()
+		if ((act2->s->lotag == 14) && (sh == act2->s->hitag) && (act2->temp_data[0] == t[0]))
 		{
 			act2->s->xvel = s->xvel;
 			//						if( t[4] == 1 )
diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index 721dc8cab..12b4163a3 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -965,7 +965,6 @@ bool movementBlocked(player_struct *p)
 
 int haskey(sectortype* sectp, int snum)
 {
-	int sect = sectnum(sectp);
 	auto p = &ps[snum];
 	if (!sectp->keyinfo)
 		return 1;
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 06c5f0449..3ff526dbd 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -997,7 +997,7 @@ static void shootgrowspark(DDukeActor* actor, int p, int sx, int sy, int sz, int
 	//RESHOOTGROW:
 
 	s->cstat &= ~257;
-	hitscan(sx, sy, sz, sectnum(sect), bcos(sa), bsin(sa),
+	hitscan(sx, sy, sz, sect, bcos(sa), bsin(sa),
 		zvel << 6, &hitsectp, &wal, &hitsprt, &hitx, &hity, &hitz, CLIPMASK1);
 
 	s->cstat |= 257;