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-rw-r--r--cmds-subvolume.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index a31cb1b8..3d5a766f 100644
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -404,7 +404,7 @@ static int cmd_subvol_list(int argc, char **argv)
while(1) {
int c;
static const struct option long_options[] = {
- {"sort", 1, NULL, 'S'},
+ {"sort", required_argument, NULL, 'S'},
{NULL, 0, NULL, 0}
};