diff --git a/sbin/nfsd/nfsd.c b/sbin/nfsd/nfsd.c
index 8c8731dab79..3de2251c6d4 100644
--- a/sbin/nfsd/nfsd.c
+++ b/sbin/nfsd/nfsd.c
@@ -657,5 +657,6 @@ setproctitle(a)
 	cp += strlen(cp);
 	while (cp < LastArg)
 		*cp++ = '\0';
+	Argv[1] = NULL;
 }
 #endif	/* __FreeBSD__ */
diff --git a/usr.sbin/nfsd/nfsd.c b/usr.sbin/nfsd/nfsd.c
index 8c8731dab79..3de2251c6d4 100644
--- a/usr.sbin/nfsd/nfsd.c
+++ b/usr.sbin/nfsd/nfsd.c
@@ -657,5 +657,6 @@ setproctitle(a)
 	cp += strlen(cp);
 	while (cp < LastArg)
 		*cp++ = '\0';
+	Argv[1] = NULL;
 }
 #endif	/* __FreeBSD__ */