diff --git a/src/core/re3.cpp b/src/core/re3.cpp
index 19697c37..13f75dd9 100644
--- a/src/core/re3.cpp
+++ b/src/core/re3.cpp
@@ -1000,7 +1000,7 @@ extern bool gbRenderWorld2;
 			"PIZZA BOY", "RC Raider Pickup", "RC Bandit Race", "RC Baron Race", "Checkpoint Charlie"
 		};
 
-		missionEntry = DebugMenuAddVar("Debug", "Select mission", &nextMissionToSwitch, nil, 1, 0, 96, missions);
+		missionEntry = DebugMenuAddVar("Debug", "Select mission", &nextMissionToSwitch, nil, 1, 0, ARRAY_SIZE(missions) - 1, missions);
 		DebugMenuEntrySetWrap(missionEntry, true);
 		DebugMenuAddCmd("Debug", "Start selected mission ", SwitchToMission);
 #endif