diff --git a/contrib/pg_autovacuum/pg_autovacuum.c b/contrib/pg_autovacuum/pg_autovacuum.c
index dc8e73d414..0152e764b3 100644
--- a/contrib/pg_autovacuum/pg_autovacuum.c
+++ b/contrib/pg_autovacuum/pg_autovacuum.c
@@ -4,7 +4,7 @@
  * Revisions by Christopher B. Browne, Liberty RMS
  * Win32 Service code added by Dave Page
  *
- * $PostgreSQL: pgsql/contrib/pg_autovacuum/pg_autovacuum.c,v 1.27.4.3 2005/04/03 00:02:03 tgl Exp $
+ * $PostgreSQL: pgsql/contrib/pg_autovacuum/pg_autovacuum.c,v 1.27.4.4 2005/05/11 17:58:32 momjian Exp $
  */
 
 #include "postgres_fe.h"
@@ -1743,7 +1743,16 @@ VacuumLoop(int argc, char **argv)
 			fflush(LOGOUTPUT);
 		}
 
-		pg_usleep(sleep_secs * 1000000);	/* Larger Pause between outer loops */
+		/* Larger Pause between outer loops */
+		/*
+		 *	pg_usleep() is wrong here because its maximum is ~2000 seconds,
+		 *	and we don't need signal interruptability on Win32 here.
+		 */
+#ifndef WIN32
+		sleep(sleep_secs);			/* Unix sleep is seconds */
+#else
+		sleep(sleep_secs * 1000);	/* Win32 sleep() is milliseconds */
+#endif
 
 		gettimeofday(&then, 0); /* Reset time counter */