diff --git a/bootloader/bios/boot.S b/bootloader/bios/boot.S
index 4d61652e2a..583f71c684 100644
--- a/bootloader/bios/boot.S
+++ b/bootloader/bios/boot.S
@@ -161,7 +161,7 @@ gdt:
 	.quad 0x00CF9A000000FFFF # 32-bit code
 gdtr:
 	.short . - gdt - 1
-	.quad gdt
+	.long gdt
 
 banan_boot_info:
 	boot_command_line: