diff --git a/source/games/duke/src/constants.h b/source/games/duke/src/constants.h
index 638806f6f..9251b1042 100644
--- a/source/games/duke/src/constants.h
+++ b/source/games/duke/src/constants.h
@@ -332,7 +332,7 @@ enum
 	EVENT_LOOKUP,		// for each player
 	EVENT_LOOKDOWN,		// for each player
 	EVENT_AIMUP,		// for each player
-	EVENT_AIMDOWN,		// for each player
+	EVENT_AIMDOWN = EVENT_AIMUP,		// for each player, typo in WW2GI
 	EVENT_FIRE,			// for each player
 	EVENT_CHANGEWEAPON,	// for each player
 	EVENT_GETSHOTRANGE,	// for each player
diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index df3de6604..cbf456483 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -931,7 +931,7 @@ void playerAimDown(int snum, ESyncBits actions)
 {
 	auto p = &ps[snum];
 	SetGameVarID(g_iReturnVarID, 0, p->GetActor(), snum);
-	OnEvent(EVENT_AIMDOWN, snum, p->GetActor(), -1);
+	OnEvent(EVENT_AIMDOWN, snum, p->GetActor(), -1);	// due to a typo in WW2GI's CON files this is the same as EVENT_AIMUP.
 	if (GetGameVarID(g_iReturnVarID, p->GetActor(), snum) != 0)
 	{
 		p->sync.actions &= ~SB_AIM_DOWN;