1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/tr.c b/coreutils/tr.c
index a28ab465e..d0af63a36 100644
--- a/coreutils/tr.c
+++ b/coreutils/tr.c
@@ -174,7 +174,7 @@ static int complement(char *buffer, int buffer_len)
 }
 
 int tr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int tr_main(int argc, char **argv)
+int tr_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         int output_length = 0, input_length;
         int i;