diff --git a/library/std/src/sys/hermit/mod.rs b/library/std/src/sys/hermit/mod.rs
index 10c19424953d2..185b68c0a7803 100644
--- a/library/std/src/sys/hermit/mod.rs
+++ b/library/std/src/sys/hermit/mod.rs
@@ -32,6 +32,8 @@ pub mod memchr;
 pub mod mutex;
 pub mod net;
 pub mod os;
+#[path = "../unix/os_str.rs"]
+pub mod os_str;
 #[path = "../unix/path.rs"]
 pub mod path;
 #[path = "../unsupported/pipe.rs"]
@@ -47,7 +49,6 @@ pub mod thread_local_key;
 pub mod time;
 
 use crate::io::ErrorKind;
-pub use crate::sys_common::os_str_bytes as os_str;
 
 #[allow(unused_extern_crates)]
 pub extern crate hermit_abi as abi;
diff --git a/library/std/src/sys/sgx/mod.rs b/library/std/src/sys/sgx/mod.rs
index fce6b4207328b..a2a763c2b4e0f 100644
--- a/library/std/src/sys/sgx/mod.rs
+++ b/library/std/src/sys/sgx/mod.rs
@@ -26,6 +26,8 @@ pub mod memchr;
 pub mod mutex;
 pub mod net;
 pub mod os;
+#[path = "../unix/os_str.rs"]
+pub mod os_str;
 pub mod path;
 #[path = "../unsupported/pipe.rs"]
 pub mod pipe;
@@ -37,8 +39,6 @@ pub mod thread;
 pub mod thread_local_key;
 pub mod time;
 
-pub use crate::sys_common::os_str_bytes as os_str;
-
 // SAFETY: must be called only once during runtime initialization.
 // NOTE: this is not guaranteed to run, for example when Rust code is called externally.
 pub unsafe fn init(argc: isize, argv: *const *const u8) {
diff --git a/library/std/src/sys/unix/mod.rs b/library/std/src/sys/unix/mod.rs
index 9e553ec7682b1..f827a4bca53f0 100644
--- a/library/std/src/sys/unix/mod.rs
+++ b/library/std/src/sys/unix/mod.rs
@@ -30,6 +30,7 @@ pub mod net;
 #[cfg(target_os = "l4re")]
 pub use self::l4re::net;
 pub mod os;
+pub mod os_str;
 pub mod path;
 pub mod pipe;
 pub mod process;
@@ -42,8 +43,6 @@ pub mod thread_local_dtor;
 pub mod thread_local_key;
 pub mod time;
 
-pub use crate::sys_common::os_str_bytes as os_str;
-
 // SAFETY: must be called only once during runtime initialization.
 // NOTE: this is not guaranteed to run, for example when Rust code is called externally.
 pub unsafe fn init(argc: isize, argv: *const *const u8) {
diff --git a/library/std/src/sys_common/os_str_bytes.rs b/library/std/src/sys/unix/os_str.rs
similarity index 99%
rename from library/std/src/sys_common/os_str_bytes.rs
rename to library/std/src/sys/unix/os_str.rs
index 569600470db77..ae96d6b4df44e 100644
--- a/library/std/src/sys_common/os_str_bytes.rs
+++ b/library/std/src/sys/unix/os_str.rs
@@ -13,6 +13,7 @@ use crate::sys_common::{AsInner, IntoInner};
 use core::str::lossy::{Utf8Lossy, Utf8LossyChunk};
 
 #[cfg(test)]
+#[path = "../unix/os_str/tests.rs"]
 mod tests;
 
 #[derive(Hash)]
diff --git a/library/std/src/sys_common/os_str_bytes/tests.rs b/library/std/src/sys/unix/os_str/tests.rs
similarity index 100%
rename from library/std/src/sys_common/os_str_bytes/tests.rs
rename to library/std/src/sys/unix/os_str/tests.rs
diff --git a/library/std/src/sys/unsupported/common.rs b/library/std/src/sys/unsupported/common.rs
index 4e6c301d29f54..a06b44e96a923 100644
--- a/library/std/src/sys/unsupported/common.rs
+++ b/library/std/src/sys/unsupported/common.rs
@@ -4,8 +4,6 @@ pub mod memchr {
     pub use core::slice::memchr::{memchr, memrchr};
 }
 
-pub use crate::sys_common::os_str_bytes as os_str;
-
 // This is not necessarily correct. May want to consider making it part of the
 // spec definition?
 use crate::os::raw::c_char;
diff --git a/library/std/src/sys/unsupported/mod.rs b/library/std/src/sys/unsupported/mod.rs
index 3ef4c6b8a8f22..a1276193bda37 100644
--- a/library/std/src/sys/unsupported/mod.rs
+++ b/library/std/src/sys/unsupported/mod.rs
@@ -11,6 +11,8 @@ pub mod io;
 pub mod mutex;
 pub mod net;
 pub mod os;
+#[path = "../unix/os_str.rs"]
+pub mod os_str;
 #[path = "../unix/path.rs"]
 pub mod path;
 pub mod pipe;
diff --git a/library/std/src/sys/wasi/mod.rs b/library/std/src/sys/wasi/mod.rs
index 4af99bfa46478..8d62335aae5eb 100644
--- a/library/std/src/sys/wasi/mod.rs
+++ b/library/std/src/sys/wasi/mod.rs
@@ -32,7 +32,8 @@ pub mod io;
 pub mod mutex;
 pub mod net;
 pub mod os;
-pub use crate::sys_common::os_str_bytes as os_str;
+#[path = "../unix/os_str.rs"]
+pub mod os_str;
 #[path = "../unix/path.rs"]
 pub mod path;
 #[path = "../unsupported/pipe.rs"]
diff --git a/library/std/src/sys/wasm/mod.rs b/library/std/src/sys/wasm/mod.rs
index cd701a333f84c..c81d653a5e38f 100644
--- a/library/std/src/sys/wasm/mod.rs
+++ b/library/std/src/sys/wasm/mod.rs
@@ -30,6 +30,8 @@ pub mod io;
 pub mod net;
 #[path = "../unsupported/os.rs"]
 pub mod os;
+#[path = "../unix/os_str.rs"]
+pub mod os_str;
 #[path = "../unix/path.rs"]
 pub mod path;
 #[path = "../unsupported/pipe.rs"]
@@ -45,8 +47,6 @@ pub mod thread_local_key;
 #[path = "../unsupported/time.rs"]
 pub mod time;
 
-pub use crate::sys_common::os_str_bytes as os_str;
-
 cfg_if::cfg_if! {
     if #[cfg(target_feature = "atomics")] {
         #[path = "atomics/condvar.rs"]
diff --git a/library/std/src/sys_common/mod.rs b/library/std/src/sys_common/mod.rs
index db83bad60d84c..894440564b738 100644
--- a/library/std/src/sys_common/mod.rs
+++ b/library/std/src/sys_common/mod.rs
@@ -26,10 +26,6 @@ pub mod fs;
 pub mod io;
 pub mod memchr;
 pub mod mutex;
-// `doc` is required because `sys/mod.rs` imports `unix/ext/mod.rs` on Windows
-// when generating documentation.
-#[cfg(any(doc, not(windows)))]
-pub mod os_str_bytes;
 pub mod process;
 pub mod remutex;
 #[macro_use]