1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/comm.c b/coreutils/comm.c
index 67088e06c..4dbc0d477 100644
--- a/coreutils/comm.c
+++ b/coreutils/comm.c
@@ -36,7 +36,7 @@ static void writeline(char *line, int class, int flags)
 }
 
 int comm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int comm_main(int argc, char **argv)
+int comm_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
 #define LINE_LEN 100
 #define BB_EOF_0 0x1