1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/expr.c b/coreutils/expr.c
index c2d966966..959f5200c 100644
--- a/coreutils/expr.c
+++ b/coreutils/expr.c
@@ -483,7 +483,7 @@ static VALUE *eval(void)
         return l;
 }
 
-int expr_main(int argc, char **argv);
+int expr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
 int expr_main(int argc, char **argv)
 {
         VALUE *v;