diff --git a/build.bat b/build.bat
index c16c2078..63334ada 100644
--- a/build.bat
+++ b/build.bat
@@ -44,6 +44,7 @@ if %ERRORLEVEL% NEQ 0 pause
 if %ERRORLEVEL% NEQ 0 pause
 
 "%OAT_BASE%\Linker.exe" ^
+--load "%OAT_GAME%\zone\all\so_zclassic_zm_prison.ff" ^
 --load "%OAT_GAME%\zone\all\so_zencounter_zm_prison.ff" ^
 --load "%OAT_GAME%\zone\all\zm_prison_patch.ff" ^
 --load "%OAT_GAME%\zone\all\zm_prison.ff" ^
diff --git a/scripts/zm/locs/zm_prison_loc_docks.gsc b/scripts/zm/locs/zm_prison_loc_docks.gsc
index 307c91e9..fc91e93d 100644
--- a/scripts/zm/locs/zm_prison_loc_docks.gsc
+++ b/scripts/zm/locs/zm_prison_loc_docks.gsc
@@ -245,7 +245,7 @@ turn_afterlife_interact_on()
 
 	if (issubstr(self.model, "p6_zm_al_shock_box"))
 	{
-		self useanimtree(-1);
+		self useanimtree(#animtree);
 		self setmodel("p6_zm_al_shock_box_on");
 		self setanim(level.shockbox_anim["on"]);
 	}
diff --git a/scripts/zm/replaced/zm_alcatraz_grief_cellblock.gsc b/scripts/zm/replaced/zm_alcatraz_grief_cellblock.gsc
index 12463d3e..47a67eac 100644
--- a/scripts/zm/replaced/zm_alcatraz_grief_cellblock.gsc
+++ b/scripts/zm/replaced/zm_alcatraz_grief_cellblock.gsc
@@ -469,7 +469,7 @@ turn_afterlife_interact_on()
 
 		if (issubstr(self.model, "p6_zm_al_shock_box"))
 		{
-			self useanimtree(-1);
+			self useanimtree(#animtree);
 			self setmodel("p6_zm_al_shock_box_on");
 			self setanim(level.shockbox_anim["on"]);
 		}