diff --git a/source/games/duke/src/sectors.cpp b/source/games/duke/src/sectors.cpp
index 839f1d8c8..16c348d06 100644
--- a/source/games/duke/src/sectors.cpp
+++ b/source/games/duke/src/sectors.cpp
@@ -1650,7 +1650,7 @@ bool checkhitswitch(int snum, walltype* wwal, DDukeActor* act)
 			break;
 
 		case SwitchDef::Access:
-			if (!fi.checkaccessswitch(snum, switchpal, act, wwal))
+			if (fi.checkaccessswitch(snum, switchpal, act, wwal))
 				return 0;
 			[[fallthrough]];