diff --git a/usr.bin/top/utils.h b/usr.bin/top/utils.h
index 6ced58505864..106e1da08963 100644
--- a/usr.bin/top/utils.h
+++ b/usr.bin/top/utils.h
@@ -22,5 +22,4 @@ const char *format_time(long);
 char *format_k(int64_t);
 int string_index(const char *string, const char * const *array);
 int find_pid(pid_t pid);
-int utf8strvisx(char *, const char *, size_t);