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-rw-r--r--tools/start-stop-daemon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/start-stop-daemon.c b/tools/start-stop-daemon.c
index 8dc16f4209..6bf55b7740 100644
--- a/tools/start-stop-daemon.c
+++ b/tools/start-stop-daemon.c
@@ -396,7 +396,7 @@ static void parse_schedule_item(const char *string, struct schedule_item *item)
if (!strcmp(string, "forever")) {
item->type = sched_forever;
- } else if (isdigit(string[0])) {
+ } else if (isdigit((int)string[0])) {
item->type = sched_timeout;
if (parse_integer(string, &item->value) != 0)
badusage("invalid timeout value in schedule");