diff --git a/source/games/duke/src/player.cpp b/source/games/duke/src/player.cpp
index 882654ff8..108f9efa0 100644
--- a/source/games/duke/src/player.cpp
+++ b/source/games/duke/src/player.cpp
@@ -1003,7 +1003,7 @@ void purplelavacheck(player_struct* p)
 	{
 		auto sect = pact->sector();
 		// one texflag for a single texture again, just to avoid one hard coded check...
-		if ((tilesurface(sect->floortexture) & TSURF_PURPLELAVA) || (tilesurface(sect->ceilingtexture) & TSURF_PURPLELAVA))
+		if ((tilesurface(sect->floortexture) == TSURF_PURPLELAVA) || (tilesurface(sect->ceilingtexture) == TSURF_PURPLELAVA))
 		{
 			if (p->boot_amount > 0)
 			{