diff --git a/common/main/inferno.h b/common/main/inferno.h
index fa1b06185..15a929315 100644
--- a/common/main/inferno.h
+++ b/common/main/inferno.h
@@ -20,8 +20,6 @@ COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 #ifndef _INFERNO_H
 #define _INFERNO_H
 
-#include <setjmp.h>
-
 struct d_event;
 
 #if defined(__APPLE__) || defined(macintosh)
@@ -48,7 +46,6 @@ typedef char d_fname[FILENAME_LEN];
  **	Global variables
  **/
 
-extern jmp_buf LeaveEvents;
 extern int Quitting;
 extern int Screen_mode;			// editor screen or game screen?
 #ifdef DXX_BUILD_DESCENT_I
diff --git a/similar/main/game.cpp b/similar/main/game.cpp
index 379fe3240..ff09cb869 100644
--- a/similar/main/game.cpp
+++ b/similar/main/game.cpp
@@ -22,7 +22,6 @@ COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 #include <string.h>
 #include <stdarg.h>
 #include <SDL.h>
-#include <setjmp.h>
 
 #ifdef OGL
 #include "ogl_init.h"
@@ -1140,7 +1139,6 @@ int game_handler(window *wind, d_event *event, unused_window_userdata_t *)
 			break;
 
 		case EVENT_WINDOW_CLOSED:
-			longjmp(LeaveEvents, 0);
 			break;
 
 		default:
diff --git a/similar/main/inferno.cpp b/similar/main/inferno.cpp
index b33531467..885fb52ad 100644
--- a/similar/main/inferno.cpp
+++ b/similar/main/inferno.cpp
@@ -307,7 +307,6 @@ int standard_handler(d_event *event)
 	return 0;
 }
 
-jmp_buf LeaveEvents;
 #define PROGNAME argv[0]
 
 //	DESCENT by Parallax Software
@@ -522,7 +521,6 @@ int main(int argc, char *argv[])
 		DoMenu();
 	}
 
-	setjmp(LeaveEvents);
 	while (window_get_front())
 		// Send events to windows and the default handler
 		event_process();