1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/comm.c b/coreutils/comm.c
index a4ab14826..67088e06c 100644
--- a/coreutils/comm.c
+++ b/coreutils/comm.c
@@ -35,7 +35,7 @@ static void writeline(char *line, int class, int flags)
         fputs(line, stdout);
 }
 
-int comm_main(int argc, char **argv);
+int comm_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int comm_main(int argc, char **argv)
 {
 #define LINE_LEN 100