diff --git a/src/kernel/arch/x86/gdt.h b/src/kernel/arch/x86/gdt.h
index 3581e45..0cb10e1 100644
--- a/src/kernel/arch/x86/gdt.h
+++ b/src/kernel/arch/x86/gdt.h
@@ -20,7 +20,7 @@
 
 #include "structs.h"
 
-extern void gdt_flush(struct segreg *gdtr);
+extern void gdt_flush(struct segreg*);
 void gdt_entry_set(struct segdesc *entry, uint32_t base,
 		uint32_t limit, uint8_t access, uint8_t gran);
 void gdt_install();