diff --git a/sys/sys/systm.h b/sys/sys/systm.h
--- a/sys/sys/systm.h
+++ b/sys/sys/systm.h
@@ -448,11 +448,13 @@
 	    0, C_HARDCLOCK)
 int	pause_sbt(const char *wmesg, sbintime_t sbt, sbintime_t pr,
 	    int flags);
+#if !defined(FREEBSD_LSOF_H)
 static __inline int
 pause(const char *wmesg, int timo)
 {
 	return (pause_sbt(wmesg, tick_sbt * timo, 0, C_HARDCLOCK));
 }
+#endif
 #define	pause_sig(wmesg, timo)						\
 	pause_sbt((wmesg), tick_sbt * (timo), 0, C_HARDCLOCK | C_CATCH)
 #define	tsleep(chan, pri, wmesg, timo)					\