Index: kernel/arch/amd64/src/boot/multiboot2.S
===================================================================
--- kernel/arch/amd64/src/boot/multiboot2.S	(revision 4bf0926eafdfba5eb055645d92feb2f44e40542f)
+++ kernel/arch/amd64/src/boot/multiboot2.S	(revision bb3ba5137bd607b9877ff92aaf085748b2ab8fda)
@@ -54,4 +54,5 @@
 		.word MULTIBOOT2_FLAGS_REQUIRED
 		.long tag_info_req_end - tag_info_req_start
+		.long MULTIBOOT2_TAG_CMDLINE
 		.long MULTIBOOT2_TAG_MODULE
 		.long MULTIBOOT2_TAG_MEMMAP