diff --git a/source/games/duke/src/actors_lava.cpp b/source/games/duke/src/actors_lava.cpp
index 0da2d7f24..87cb045d4 100644
--- a/source/games/duke/src/actors_lava.cpp
+++ b/source/games/duke/src/actors_lava.cpp
@@ -189,9 +189,9 @@ void addminecart(int p1, int p2, int i, int iht, int p3, int childsectnum)
 void dotorch(void)
 {
 	int ds;
-	short j;
-	short startwall, endwall;
-	char shade;
+	int j;
+	int startwall, endwall;
+	uint8_t shade;
 	ds = krand()&8;
 	for (int i = 0; i < torchcnt; i++)
 	{
@@ -377,11 +377,11 @@ void dojaildoor(void)
 
 void moveminecart(void)
 {
-	short i;
-	short j;
-	short csect;
-	short startwall;
-	short endwall;
+	int i;
+	int j;
+	int csect;
+	int startwall;
+	int endwall;
 	int speed;
 	int y;
 	int x;
@@ -561,7 +561,7 @@ void thunder(void)
 {
 	struct player_struct* p;
 	int r1, r2;
-	short startwall, endwall, i, j;
+	int startwall, endwall, i, j;
 	uint8_t shade;
 
 	p = &ps[screenpeek];
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index d78276609..c33c4fe36 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -2704,7 +2704,7 @@ void processinput_d(int snum)
 	int j, k, doubvel, fz, cz, truefdist;
 	Collision chz, clz;
 	bool shrunk;
-	short psect, psectlotag;
+	int psect, psectlotag;
 	struct player_struct* p;
 	spritetype* s;
 
diff --git a/source/games/duke/src/premap_d.cpp b/source/games/duke/src/premap_d.cpp
index 9f23e701f..c6741a415 100644
--- a/source/games/duke/src/premap_d.cpp
+++ b/source/games/duke/src/premap_d.cpp
@@ -274,7 +274,7 @@ void cacheit_d(void)
 
 void prelevel_d(int g)
 {
-	short i, j, startwall, endwall, lotaglist;
+	int i, j, startwall, endwall, lotaglist;
 	short lotags[65];
 
 	prelevel_common(g);
diff --git a/source/games/duke/src/sectors_r.cpp b/source/games/duke/src/sectors_r.cpp
index 5e01ad7b1..9ba6f577e 100644
--- a/source/games/duke/src/sectors_r.cpp
+++ b/source/games/duke/src/sectors_r.cpp
@@ -976,7 +976,7 @@ static void lotsofpopcorn(DDukeActor *actor, int wallnum, int n)
 
 void checkhitwall_r(DDukeActor* spr, int dawallnum, int x, int y, int z, int atwith)
 {
-	short j, i;
+	int j, i;
 	int sn = -1, darkestwall;
 	walltype* wal;
 	spritetype* s;