diff --git a/test/shell/relative-sign-options.sh b/test/shell/relative-sign-options.sh
index 82a5ed2d0..dbf164497 100644
--- a/test/shell/relative-sign-options.sh
+++ b/test/shell/relative-sign-options.sh
@@ -77,7 +77,7 @@ lvresize --poolmetadatasize 64 $vg/$lv7
 lvresize --poolmetadatasize +8 $vg/$lv7
 not lvresize -y --poolmetadatasize -8 $vg/$lv7
 
-lvextend --poolmetadatasize +8 $vg/$lv7
+lvextend --poolmetadatasize +4 $vg/$lv7
 not lvextend -y --poolmetadatasize -8 $vg/$lv7
 fi