diff --git a/library/std/src/sys/pal/mikros/os.rs b/library/std/src/sys/pal/mikros/os.rs
index 58d20d0499b..088cfb7b474 100644
--- a/library/std/src/sys/pal/mikros/os.rs
+++ b/library/std/src/sys/pal/mikros/os.rs
@@ -254,7 +254,7 @@ pub fn home_dir() -> Option<PathBuf> {
 
 pub fn exit(code: i32) -> ! {
     if let Some(proc_man_pid) = syscalls::try_get_registered(3) {
-        rpc::send_call(proc_man_pid, 2, 4, &postcard::to_allocvec(&(code as u8)).unwrap())
+        rpc::send_call(proc_man_pid, 8, 4, &postcard::to_allocvec(&(code as u8)).unwrap())
             .get_return();
     };
     unsafe {