diff --git a/src/kernel/boot/boot.S b/src/kernel/boot/boot.S
index 8c7df36..ab79dbe 100644
--- a/src/kernel/boot/boot.S
+++ b/src/kernel/boot/boot.S
@@ -63,6 +63,8 @@ long_mode_start:
 upper_memory:
     movabs rax, offset BootStack
     mov rsp, rax
+    push 0
+    mov rbp, rsp
 
     mov rax, 0
     movabs [BootP4], rax