diff --git a/lib/tlog/rec.c b/lib/tlog/rec.c
index af6af6d..3645669 100644
--- a/lib/tlog/rec.c
+++ b/lib/tlog/rec.c
@@ -80,6 +80,7 @@ tlog_rec_alarm_sighandler(int signum)
 static void
 tlog_rec_sigchld_handler(int signum)
 {
+    (void)signum;
     tlog_rec_child_exited = true;
 }