diff --git a/sys/fdkrncfg.c b/sys/fdkrncfg.c
index 55daef2..0f37481 100644
--- a/sys/fdkrncfg.c
+++ b/sys/fdkrncfg.c
@@ -24,8 +24,8 @@ char KERNEL[] = "KERNEL.SYS";
 #include <fcntl.h>
 
 #include "portab.h"
-extern int VA_CDECL printf(const char * fmt, ...);
-extern int VA_CDECL sprintf(char * buff, const char * fmt, ...);
+extern int VA_CDECL printf(const char FAR * fmt, ...);
+extern int VA_CDECL sprintf(char FAR * buff, const char FAR * fmt, ...);
 
 #ifdef __WATCOMC__
 unsigned _dos_close(int handle);
diff --git a/sys/sys.c b/sys/sys.c
index 14353e3..dacbf2b 100644
--- a/sys/sys.c
+++ b/sys/sys.c
@@ -75,8 +75,8 @@
  * #including <stdio.h> to make executable MUCH smaller
  * using [s]printf from prf.c!
  */
-extern int VA_CDECL printf(const char * fmt, ...);
-extern int VA_CDECL sprintf(char * buff, const char * fmt, ...);
+extern int VA_CDECL printf(const char FAR * fmt, ...);
+extern int VA_CDECL sprintf(char FAR * buff, const char FAR * fmt, ...);
 
 #include "fat12com.h"
 #include "fat16com.h"