1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/tail.c b/coreutils/tail.c
index 53dbf33ac..beecbaedf 100644
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -79,7 +79,7 @@ static unsigned eat_num(const char *p)
         return xatou_sfx(p, tail_suffixes);
 }
 
-int tail_main(int argc, char **argv);
+int tail_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int tail_main(int argc, char **argv)
 {
         unsigned count = 10;