diff --git a/crates/lune-std-process/src/lib.rs b/crates/lune-std-process/src/lib.rs
index b66bc0df..390f75dc 100644
--- a/crates/lune-std-process/src/lib.rs
+++ b/crates/lune-std-process/src/lib.rs
@@ -50,6 +50,11 @@ pub fn module(lua: &Lua) -> LuaResult<LuaTable> {
     // Create constants for OS & processor architecture
     let os = lua.create_string(OS.to_lowercase())?;
     let arch = lua.create_string(ARCH.to_lowercase())?;
+    let endianness = lua.create_string(if cfg!(target_endian = "big") {
+        "big"
+    } else {
+        "little"
+    })?;
     // Create readonly args array
     let args_vec = lua
         .app_data_ref::<Vec<String>>()
@@ -75,6 +80,7 @@ pub fn module(lua: &Lua) -> LuaResult<LuaTable> {
     TableBuilder::new(lua)?
         .with_value("os", os)?
         .with_value("arch", arch)?
+        .with_value("endianness", endianness)?
         .with_value("args", args_tab)?
         .with_value("cwd", cwd_str)?
         .with_value("env", env_tab)?
diff --git a/types/process.luau b/types/process.luau
index 6a4a12ec..9c436008 100644
--- a/types/process.luau
+++ b/types/process.luau
@@ -1,5 +1,6 @@
 export type OS = "linux" | "macos" | "windows"
 export type Arch = "x86_64" | "aarch64"
+export type Endianness = "big" | "little"
 
 export type SpawnOptionsStdioKind = "default" | "inherit" | "forward" | "none"
 export type SpawnOptionsStdio = {
@@ -117,8 +118,8 @@ export type ChildProcess = {
 	stdin: typeof(ChildProcessWriter),
 	stdout: typeof(ChildProcessReader),
 	stderr: typeof(ChildProcessReader),
-	kill: () -> ();
-	status: () -> { ok: boolean, code: number }
+	kill: () -> (),
+	status: () -> { ok: boolean, code: number },
 }
 
 --[=[
@@ -222,6 +223,20 @@ process.os = (nil :: any) :: OS
 ]=]
 process.arch = (nil :: any) :: Arch
 
+--[=[
+	@within Process
+	@prop endianness Endianness
+	@tag read_only
+
+	The endianness of the processor currently being used.
+
+	Possible values:
+
+	* `"big"`
+	* `"little"`
+]=]
+process.endianness = (nil :: any) :: Endianness
+
 --[=[
 	@within Process
 	@prop args { string }