diff --git a/src/kernel/gdt.cpp b/src/kernel/gdt.cpp
index 38e2eb2..b82c9f8 100644
--- a/src/kernel/gdt.cpp
+++ b/src/kernel/gdt.cpp
@@ -53,7 +53,7 @@ struct tss_entry
 	uint64_t reserved1;
 	uint16_t reserved2;
 	uint16_t iomap_offset;
-};
+} __attribute__ ((packed));
 
 struct idt_descriptor
 {