1 files changed, 1 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 3c9f9fe81..999caae0c 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -699,7 +699,7 @@ struct hwtype {
         int (*activate) (int fd);
         int suppress_null_addr;
 };
-extern int interface_opt_a;
+extern smallint interface_opt_a;
 int display_interfaces(char *ifname);
 const struct aftype *get_aftype(const char *name);
 const struct hwtype *get_hwtype(const char *name);