diff --git a/usr.sbin/burncd/burncd.c b/usr.sbin/burncd/burncd.c
index 083568658dd4..c4d1648e7bbc 100644
--- a/usr.sbin/burncd/burncd.c
+++ b/usr.sbin/burncd/burncd.c
@@ -59,7 +59,7 @@ struct track_info {
 };
 static struct track_info tracks[100];
 static int quiet, verbose, saved_block_size, notracks;
-static volatile int global_fd_for_cleanup;
+static volatile sig_atomic_t global_fd_for_cleanup;
 
 void add_track(char *, int, int, int);
 void do_DAO(int fd, int, int);