diff --git a/Cargo.toml b/Cargo.toml
index ef5358f25..b8da013dd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -65,19 +65,10 @@ fuchsia = [
 ]
 generic = [
   "arch",
-  "hashsum",
   "hostname",
-  "join",
   "more",
-  "ln",
-  "ls",
-  "mkdir",
-  "mktemp",
-  "nl",
   "nproc",
-  "ptx",
   "shred",
-  "sort",
   "sync",
   "tail",
   "test",
@@ -111,13 +102,21 @@ redox_generic = [
   "false",
   "fmt",
   "fold",
+  "hashsum",
   "head",
+  "join",
   "link",
+  "ln",
+  "ls",
+  "mkdir",
+  "mktemp",
   "mv",
+  "nl",
   "od",
   "paste",
   "printenv",
   "printf",
+  "ptx",
   "pwd",
   "readlink",
   "realpath",
@@ -127,6 +126,7 @@ redox_generic = [
   "seq",
   "shuf",
   "sleep",
+  "sort",
   "split",
   "sum",
   "tac",
diff --git a/src/ln/ln.rs b/src/ln/ln.rs
index 68e4d173b..5d0cccb92 100644
--- a/src/ln/ln.rs
+++ b/src/ln/ln.rs
@@ -14,7 +14,7 @@ extern crate uucore;
 
 use std::fs;
 use std::io::{stdin, BufRead, BufReader, Result};
-#[cfg(unix)]
+#[cfg(any(unix, target_os = "redox"))]
 use std::os::unix::fs::symlink;
 #[cfg(windows)]
 use std::os::windows::fs::{symlink_dir, symlink_file};
diff --git a/src/mkdir/mkdir.rs b/src/mkdir/mkdir.rs
index af8c3d2e9..ec07d36e8 100644
--- a/src/mkdir/mkdir.rs
+++ b/src/mkdir/mkdir.rs
@@ -135,20 +135,18 @@ fn mkdir(path: &Path, mode: u16, verbose: bool) -> i32 {
         show_info!("created directory '{}'", path.display());
     }
 
-    #[cfg(unix)]
+    #[cfg(any(unix, target_os = "redox"))]
     fn chmod(path: &Path, mode: u16) -> i32 {
-        use std::ffi::CString;
-        use std::io::Error;
+        use fs::{Permissions, set_permissions};
+        use std::os::unix::fs::{PermissionsExt};
 
-        let directory =
-            CString::new(path.as_os_str().to_str().unwrap()).unwrap_or_else(|e| crash!(1, "{}", e));
-        let mode = mode as libc::mode_t;
+        let mode = Permissions::from_mode(mode as u32);
 
-        if unsafe { libc::chmod(directory.as_ptr(), mode) } != 0 {
-            show_info!(
-                "{}: errno {}",
+        if let Err(err) = set_permissions(path, mode) {
+            show_error!(
+                "{}: {}",
                 path.display(),
-                Error::last_os_error().raw_os_error().unwrap()
+                err
             );
             return 1;
         }