1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/sort.c b/coreutils/sort.c
index fad6d1244..e2e7983a1 100644
--- a/coreutils/sort.c
+++ b/coreutils/sort.c
@@ -128,7 +128,7 @@ static char *get_key(char *str, struct sort_key *key, int flags)
         /* Handle -i */
         if (flags & FLAG_i) {
                 for (start = end = 0; str[end]; end++)
-                        if (isprint(str[end]))
+                        if (isprint_asciionly(str[end]))
                                 str[start++] = str[end];
                 str[start] = '\0';
         }