diff --git a/kernel/gdt.S b/kernel/gdt.S
index 0be46895..01c11877 100644
--- a/kernel/gdt.S
+++ b/kernel/gdt.S
@@ -14,6 +14,7 @@ gdt_flush:
     mov %ax, %es
     mov %ax, %fs
     mov %ax, %ss
+    mov %ax, %gs
 
     ljmp $0x08, $.flush
 .flush: