1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/tr.c b/coreutils/tr.c
index 6a34e3087..9521bbcd5 100644
--- a/coreutils/tr.c
+++ b/coreutils/tr.c
@@ -165,7 +165,7 @@ static int complement(char *buffer, int buffer_len)
         return ix;
 }
 
-int tr_main(int argc, char **argv);
+int tr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int tr_main(int argc, char **argv)
 {
         unsigned char *ptr;