diff --git a/src/gdt.rs b/src/gdt.rs
index 2b82eb86..b58089c1 100644
--- a/src/gdt.rs
+++ b/src/gdt.rs
@@ -1,4 +1,5 @@
 use lazy_static::lazy_static;
+use x86_64::structures::gdt::{Descriptor, GlobalDescriptorTable};
 use x86_64::structures::tss::TaskStateSegment;
 use x86_64::VirtAddr;
 
@@ -18,3 +19,12 @@ lazy_static! {
         tss
     };
 }
+
+lazy_static! {
+    static ref GDT: GlobalDescriptorTable = {
+        let mut gdt = GlobalDescriptorTable::new();
+        gdt.add_entry(Descriptor::kernel_code_segment());
+        gdt.add_entry(Descriptor::tss_segment(&TSS));
+        gdt
+    };
+}