diff --git a/arch/x86_64/src/acpi/mod.rs b/arch/x86_64/src/acpi/mod.rs
index f44bd07..245450d 100644
--- a/arch/x86_64/src/acpi/mod.rs
+++ b/arch/x86_64/src/acpi/mod.rs
@@ -5,7 +5,7 @@ use core::intrinsics::{atomic_load, atomic_store};
 use core::sync::atomic::Ordering;
 
 use interrupt;
-use memory::{allocate_frame, Frame};
+use memory::{allocate_frames, Frame};
 use paging::{entry, ActivePageTable, Page, PhysicalAddress, VirtualAddress};
 use start::{kstart_ap, AP_READY};
 
@@ -59,11 +59,8 @@ pub fn init_sdt(sdt: &'static Sdt, active_table: &mut ActivePageTable) {
                     if ap_local_apic.flags & 1 == 1 {
                         // Allocate a stack
                         // TODO: Allocate contiguous
-                        let stack_start = allocate_frame().expect("no more frames in acpi stack_start").start_address().get() + ::KERNEL_OFFSET;
-                        for _i in 0..62 {
-                            allocate_frame().expect("no more frames in acpi stack");
-                        }
-                        let stack_end = allocate_frame().expect("no more frames in acpi stack_end").start_address().get() + 4096 + ::KERNEL_OFFSET;
+                        let stack_start = allocate_frames(64).expect("no more frames in acpi stack_start").start_address().get() + ::KERNEL_OFFSET;
+                        let stack_end = stack_start + 64 * 4096;
 
                         let ap_ready = TRAMPOLINE as *mut u64;
                         let ap_cpu_id = unsafe { ap_ready.offset(1) };