1 files changed, 1 insertions, 1 deletions

diff --git a/coreutils/df.c b/coreutils/df.c
index bcde78393..ae68f0831 100644
--- a/coreutils/df.c
+++ b/coreutils/df.c
@@ -178,7 +178,7 @@ int df_main(int argc UNUSED_PARAM, char **argv)
 #endif
 
 #if ENABLE_FEATURE_ASSUME_UNICODE
-                        dev_len = bb_mbstrlen(device);
+                        dev_len = unicode_strlen(device);
                         if (dev_len > 20) {
                                 printf("%s\n%20s", device, "");
                         } else {