1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/length.c b/coreutils/length.c
index a310b3b2f..c7523a02a 100644
--- a/coreutils/length.c
+++ b/coreutils/length.c
@@ -6,7 +6,7 @@
 
 /* This is a NOFORK applet. Be very careful! */
 
-int length_main(int argc, char **argv);
+int length_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int length_main(int argc, char **argv)
 {
         if ((argc != 2) || (**(++argv) == '-')) {