diff --git a/sys/src/games/doom/d_net.c b/sys/src/games/doom/d_net.c
index 2df926410..fd0ef6450 100644
--- a/sys/src/games/doom/d_net.c
+++ b/sys/src/games/doom/d_net.c
@@ -25,14 +25,15 @@
 
 static const char rcsid[] = "$Id: d_net.c,v 1.3 1997/02/03 22:01:47 b1 Exp $";
 
+#include "doomdef.h"
+#include "doomstat.h"
 
 #include "m_menu.h"
 #include "i_system.h"
 #include "i_video.h"
 #include "i_net.h"
+#include "r_data.h"
 #include "g_game.h"
-#include "doomdef.h"
-#include "doomstat.h"
 
 #define	NCMD_EXIT		0x80000000
 #define	NCMD_RETRANSMIT		0x40000000
@@ -40,7 +41,6 @@ static const char rcsid[] = "$Id: d_net.c,v 1.3 1997/02/03 22:01:47 b1 Exp $";
 #define	NCMD_KILL		0x10000000	// kill game
 #define	NCMD_CHECKSUM	 	0x0fffffff
 
- 
 doomcom_t*	doomcom;	
 doomdata_t*	netbuffer;		// points inside doomcom
 
diff --git a/sys/src/games/doom/d_net.h b/sys/src/games/doom/d_net.h
index b27747233..63628ef0f 100644
--- a/sys/src/games/doom/d_net.h
+++ b/sys/src/games/doom/d_net.h
@@ -25,7 +25,6 @@
 
 #include "d_player.h"
 
-
 #ifdef __GNUG__
 #pragma interface
 #endif
diff --git a/sys/src/games/doom/m_swap.c b/sys/src/games/doom/m_swap.c
index 1db93c86f..5fbb28cab 100644
--- a/sys/src/games/doom/m_swap.c
+++ b/sys/src/games/doom/m_swap.c
@@ -31,8 +31,8 @@ rcsid[] = "$Id: m_bbox.c,v 1.1 1997/02/03 22:45:10 b1 Exp $";
 #include "m_swap.h"
 
 
-// Not needed with big endian.
-#ifndef __BIG_ENDIAN__
+// Not needed with little endian.
+#ifdef __BIG_ENDIAN__
 
 // Swap 16bit, that is, MSB and LSB byte.
 unsigned short SwapSHORT(unsigned short x)
diff --git a/sys/src/games/doom/m_swap.h b/sys/src/games/doom/m_swap.h
index 86f6e0a14..5d32fdf4a 100644
--- a/sys/src/games/doom/m_swap.h
+++ b/sys/src/games/doom/m_swap.h
@@ -32,8 +32,8 @@
 // Endianess handling.
 // WAD files are stored little endian.
 #ifdef __BIG_ENDIAN__
-short	SwapSHORT(short);
-long	SwapLONG(long);
+unsigned short	SwapSHORT(unsigned short);
+unsigned long	SwapLONG(unsigned long);
 #define SHORT(x)	((short)SwapSHORT((unsigned short) (x)))
 #define LONG(x)         ((long)SwapLONG((unsigned long) (x)))
 #else
diff --git a/sys/src/games/doom/mkfile b/sys/src/games/doom/mkfile
index 5a477ad9b..82cc15a78 100644
--- a/sys/src/games/doom/mkfile
+++ b/sys/src/games/doom/mkfile
@@ -136,8 +136,7 @@ UPDATE=\
 	$HFILES\
 	${OFILES:%.$O=%.c}\
 
+CFLAGS=$CFLAGS `{~ $objtype mips && echo -D__BIG_ENDIAN__}
+
 </sys/src/cmd/mkone
 
-d_net.$O : d_net.c
-	$CC -FVw d_net.c
-