diff --git a/arch/x86_64/src/acpi/mod.rs b/arch/x86_64/src/acpi/mod.rs
index d6b96f4..ffe4ae9 100644
--- a/arch/x86_64/src/acpi/mod.rs
+++ b/arch/x86_64/src/acpi/mod.rs
@@ -67,13 +67,15 @@ pub fn init_sdt(sdt: &'static Sdt, active_table: &mut ActivePageTable) {
 
                         let ap_ready = TRAMPOLINE as *mut u64;
                         let ap_cpu_id = unsafe { ap_ready.offset(1) };
-                        let ap_stack_start = unsafe { ap_ready.offset(2) };
-                        let ap_stack_end = unsafe { ap_ready.offset(3) };
-                        let ap_code = unsafe { ap_ready.offset(4) };
+                        let ap_page_table = unsafe { ap_ready.offset(2) };
+                        let ap_stack_start = unsafe { ap_ready.offset(3) };
+                        let ap_stack_end = unsafe { ap_ready.offset(4) };
+                        let ap_code = unsafe { ap_ready.offset(5) };
 
                         // Set the ap_ready to 0, volatile
                         unsafe { atomic_store(ap_ready, 0) };
                         unsafe { atomic_store(ap_cpu_id, ap_local_apic.id as u64) };
+                        unsafe { atomic_store(ap_page_table, active_table.address() as u64) };
                         unsafe { atomic_store(ap_stack_start, stack_start as u64) };
                         unsafe { atomic_store(ap_stack_end, stack_end as u64) };
                         unsafe { atomic_store(ap_code, kstart_ap as u64) };
diff --git a/arch/x86_64/src/start.rs b/arch/x86_64/src/start.rs
index 8a67d7c..3cdf65a 100644
--- a/arch/x86_64/src/start.rs
+++ b/arch/x86_64/src/start.rs
@@ -134,7 +134,7 @@ pub unsafe extern fn kstart() -> ! {
 }
 
 /// Entry to rust for an AP
-pub unsafe extern fn kstart_ap(cpu_id: usize, stack_start: usize, stack_end: usize) -> ! {
+pub unsafe extern fn kstart_ap(cpu_id: usize, page_table: usize, stack_start: usize, stack_end: usize) -> ! {
     {
         assert_eq!(BSS_TEST_ZERO, 0);
         assert_eq!(DATA_TEST_NONZERO, 0xFFFFFFFFFFFFFFFF);