diff --git a/tests/mv/backup-is-src b/tests/mv/backup-is-src
index de1422f80..a7bdec7da 100755
--- a/tests/mv/backup-is-src
+++ b/tests/mv/backup-is-src
@@ -37,7 +37,7 @@ LANG=C
 export LANG
 
 # This mv command should exit nonzero.
-$MV -b -V simple $a2 $a > out 2>&1 && fail=1
+$MV --b=simple $a2 $a > out 2>&1 && fail=1
 
 sed \
    -e "s,$MV:,XXX:," \