diff --git a/source/duke3d/src/game.cpp b/source/duke3d/src/game.cpp
index 598f913df..cd1eecf14 100644
--- a/source/duke3d/src/game.cpp
+++ b/source/duke3d/src/game.cpp
@@ -438,6 +438,9 @@ static void G_OROR_DupeSprites(const spritetype *sp)
     }
 }
 
+static int16_t SE40backupStat[MAXSECTORS];
+static int32_t SE40backupZ[MAXSECTORS];
+
 static void G_SE40(int32_t smoothratio)
 {
     if ((unsigned)ror_sprite < MAXSPRITES)
@@ -465,8 +468,6 @@ static void G_SE40(int32_t smoothratio)
         {
             int32_t renderz, picnum;
             // XXX: PK: too large stack allocation for my taste
-            int16_t backupstat[MAXSECTORS];
-            int32_t backupz[MAXSECTORS];
             int32_t i;
             int32_t pix_diff, newz;
             //                initprintf("drawing ror\n");
@@ -484,8 +485,8 @@ static void G_SE40(int32_t smoothratio)
 
                 for (i = 0; i < numsectors; i++)
                 {
-                    backupstat[i] = sector[i].ceilingstat;
-                    backupz[i] = sector[i].ceilingz;
+                    SE40backupStat[i] = sector[i].ceilingstat;
+                    SE40backupZ[i] = sector[i].ceilingz;
                     if (!ror_protectedsectors[i] || (ror_protectedsectors[i] && sp->lotag == 41))
                     {
                         sector[i].ceilingstat = 1;
@@ -506,8 +507,8 @@ static void G_SE40(int32_t smoothratio)
 
                 for (i = 0; i < numsectors; i++)
                 {
-                    backupstat[i] = sector[i].floorstat;
-                    backupz[i] = sector[i].floorz;
+                    SE40backupStat[i] = sector[i].floorstat;
+                    SE40backupZ[i] = sector[i].floorz;
                     if (!ror_protectedsectors[i] || (ror_protectedsectors[i] && sp->lotag == 41))
                     {
                         sector[i].floorstat = 1;
@@ -535,8 +536,8 @@ static void G_SE40(int32_t smoothratio)
                 sector[sprite[sprite2].sectnum].ceilingpicnum = picnum;
                 for (i = 0; i < numsectors; i++)
                 {
-                    sector[i].ceilingstat = backupstat[i];
-                    sector[i].ceilingz = backupz[i];
+                    sector[i].ceilingstat = SE40backupStat[i];
+                    sector[i].ceilingz = SE40backupZ[i];
                 }
             }
             else
@@ -545,8 +546,8 @@ static void G_SE40(int32_t smoothratio)
 
                 for (i = 0; i < numsectors; i++)
                 {
-                    sector[i].floorstat = backupstat[i];
-                    sector[i].floorz = backupz[i];
+                    sector[i].floorstat = SE40backupStat[i];
+                    sector[i].floorz = SE40backupZ[i];
                 }
             }
         }