diff --git a/source/games/duke/src/actors.cpp b/source/games/duke/src/actors.cpp
index bf2b3e1f2..41a4b3f61 100644
--- a/source/games/duke/src/actors.cpp
+++ b/source/games/duke/src/actors.cpp
@@ -4501,11 +4501,11 @@ void handle_se27(DDukeActor* actor)
 //
 //---------------------------------------------------------------------------
 
-void handle_se24(DDukeActor *actor, int16_t *list1, int16_t *list2, bool scroll, int TRIPBOMB, int LASERLINE, int CRANE, int shift)
+void handle_se24(DDukeActor *actor, const int16_t *list1, const int16_t *list2, bool scroll, int TRIPBOMB, int LASERLINE, int CRANE, int shift)
 {
 	int* t = &actor->temp_data[0];
 
-	auto testlist = [](int16_t* list, int val) { for (int i = 0; list[i] > 0; i++) if (list[i] == val) return true; return false; };
+	auto testlist = [](const int16_t* list, int val) { for (int i = 0; list[i] > 0; i++) if (list[i] == val) return true; return false; };
 
 	if (t[4]) return;
 
diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 1fe08fd7a..00be62fdb 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -3696,8 +3696,8 @@ void moveeffectors_d(void)   //STATNUM 3
 		case SE_24_CONVEYOR:
 		case SE_34:
 		{
-			static int16_t list1[] = { BLOODPOOL, PUKE, FOOTPRINTS, FOOTPRINTS2, FOOTPRINTS3, FOOTPRINTS4, BULLETHOLE, BLOODSPLAT1, BLOODSPLAT2, BLOODSPLAT3, BLOODSPLAT4, -1 };
-			static int16_t list2[] = { BOLT1, BOLT1 + 1,BOLT1 + 2, BOLT1 + 3, SIDEBOLT1, SIDEBOLT1 + 1, SIDEBOLT1 + 2, SIDEBOLT1 + 3, -1 };
+			static const int16_t list1[] = { BLOODPOOL, PUKE, FOOTPRINTS, FOOTPRINTS2, FOOTPRINTS3, FOOTPRINTS4, BULLETHOLE, BLOODSPLAT1, BLOODSPLAT2, BLOODSPLAT3, BLOODSPLAT4, -1 };
+			static const int16_t list2[] = { BOLT1, BOLT1 + 1,BOLT1 + 2, BOLT1 + 3, SIDEBOLT1, SIDEBOLT1 + 1, SIDEBOLT1 + 2, SIDEBOLT1 + 3, -1 };
 			handle_se24(act, list1, list2, true, TRIPBOMB, LASERLINE, CRANE, 2);
 			break;
 		}
diff --git a/source/games/duke/src/actors_r.cpp b/source/games/duke/src/actors_r.cpp
index 6210623b0..2b9f8a34f 100644
--- a/source/games/duke/src/actors_r.cpp
+++ b/source/games/duke/src/actors_r.cpp
@@ -3574,8 +3574,8 @@ void moveeffectors_r(void)   //STATNUM 3
 		case SE_24_CONVEYOR:
 		case SE_34:
 		{
-			static int16_t list1[] = { BLOODPOOL, PUKE, FOOTPRINTS, FOOTPRINTS2, FOOTPRINTS3, -1 };
-			static int16_t list2[] = { BOLT1, BOLT1 + 1,BOLT1 + 2, BOLT1 + 3, -1 };
+			static const int16_t list1[] = { BLOODPOOL, PUKE, FOOTPRINTS, FOOTPRINTS2, FOOTPRINTS3, -1 };
+			static const int16_t list2[] = { BOLT1, BOLT1 + 1,BOLT1 + 2, BOLT1 + 3, -1 };
 			handle_se24(act, list1, list2, st != 156, BULLETHOLE, -1, CRANE, 1);
 			break;
 		}
diff --git a/source/games/duke/src/funct.h b/source/games/duke/src/funct.h
index bc3f2a56e..7a3d82c9e 100644
--- a/source/games/duke/src/funct.h
+++ b/source/games/duke/src/funct.h
@@ -84,7 +84,7 @@ void handle_se19(DDukeActor* i, int BIGFORCE);
 void handle_se20(DDukeActor* i);
 void handle_se21(DDukeActor* i);
 void handle_se22(DDukeActor* i);
-void handle_se24(DDukeActor* actor, int16_t* list1, int16_t* list2, bool scroll, int TRIPBOMB, int LASERLINE, int CRANE, int shift);
+void handle_se24(DDukeActor* actor, const int16_t* list1, const int16_t* list2, bool scroll, int TRIPBOMB, int LASERLINE, int CRANE, int shift);
 void handle_se25(DDukeActor* a, int t_index, int snd1, int snd2);
 void handle_se26(DDukeActor* i);
 void handle_se27(DDukeActor* i);