2 files changed, 5 insertions, 5 deletions

diff --git a/coreutils/ls.c b/coreutils/ls.c
index 8b5065ac6..5fc60a347 100644
--- a/coreutils/ls.c
+++ b/coreutils/ls.c
@@ -982,13 +982,13 @@ extern int ls_main(int argc, char **argv)
 
 #ifdef CONFIG_FEATURE_AUTOWIDTH
         /* Obtain the terminal width.  */
-        get_terminal_width_height(fileno(stdout), &terminal_width, NULL);
+        get_terminal_width_height(STDOUT_FILENO, &terminal_width, NULL);
         /* Go one less... */
         terminal_width--;
 #endif
 
 #ifdef CONFIG_FEATURE_LS_COLOR
-        if (isatty(fileno(stdout)))
+        if (isatty(STDOUT_FILENO))
                 show_color = 1;
 #endif
 
@@ -1060,9 +1060,9 @@ extern int ls_main(int argc, char **argv)
         if ((all_fmt & STYLE_MASK) == STYLE_AUTO)
 #if STYLE_AUTO != 0
                 all_fmt = (all_fmt & ~STYLE_MASK)
-                                | (isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE);
+                                | (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
 #else
-                all_fmt |= (isatty(fileno(stdout)) ? STYLE_COLUMNS : STYLE_SINGLE);
+                all_fmt |= (isatty(STDOUT_FILENO) ? STYLE_COLUMNS : STYLE_SINGLE);
 #endif
 
         /*
diff --git a/coreutils/md5_sha1_sum.c b/coreutils/md5_sha1_sum.c
index 64e069374..3a07da055 100644
--- a/coreutils/md5_sha1_sum.c
+++ b/coreutils/md5_sha1_sum.c
@@ -55,7 +55,7 @@ static uint8_t *hash_file(const char *filename, uint8_t hash_algo)
         int src_fd;
 
         if (strcmp(filename, "-") == 0) {
-                src_fd = fileno(stdin);
+                src_fd = STDIN_FILENO;
         } else {
                 src_fd = open(filename, O_RDONLY);
         }