1 files changed, 2 insertions, 2 deletions

diff --git a/libbb/getopt32.c b/libbb/getopt32.c
index 15b6efc09..497fc016f 100644
--- a/libbb/getopt32.c
+++ b/libbb/getopt32.c
@@ -404,7 +404,7 @@ getopt32(char **argv, const char *applet_opts, ...)
                 if (c >= 32)
                         break;
                 on_off->opt_char = *s;
-                on_off->switch_on = (1 << c);
+                on_off->switch_on = (1U << c);
                 if (*++s == ':') {
                         on_off->optarg = va_arg(p, void **);
                         if (s[1] == '+' || s[1] == '*') {
@@ -454,7 +454,7 @@ getopt32(char **argv, const char *applet_opts, ...)
                         if (c >= 32)
                                 break;
                         on_off->opt_char = l_o->val;
-                        on_off->switch_on = (1 << c);
+                        on_off->switch_on = (1U << c);
                         if (l_o->has_arg != no_argument)
                                 on_off->optarg = va_arg(p, void **);
                         c++;