diff --git a/Source/levels/trigs.cpp b/Source/levels/trigs.cpp
index 2da21e190..75765d23e 100644
--- a/Source/levels/trigs.cpp
+++ b/Source/levels/trigs.cpp
@@ -170,7 +170,7 @@ void InitL2Triggers()
 	numtrigs = 0;
 	for (WorldTileCoord j = 0; j < MAXDUNY; j++) {
 		for (WorldTileCoord i = 0; i < MAXDUNX; i++) {
-			if (dPiece[i][j] == 266 && (i != Quests[Q_SCHAMB].position.x || j != Quests[Q_SCHAMB].position.y)) {
+			if (dPiece[i][j] == 266 && (!Quests[Q_SCHAMB].IsAvailable() || i != Quests[Q_SCHAMB].position.x || j != Quests[Q_SCHAMB].position.y)) {
 				trigs[numtrigs].position = { i, j };
 				trigs[numtrigs]._tmsg = WM_DIABPREVLVL;
 				numtrigs++;