diff --git a/bootloader-efi b/bootloader-efi
index 555b236..8b200f6 160000
--- a/bootloader-efi
+++ b/bootloader-efi
@@ -1 +1 @@
-Subproject commit 555b236027a32a87bca273999b008e9534f9f876
+Subproject commit 8b200f6d52fff3b18e33d907620eec52c6007642
diff --git a/mk/disk.mk b/mk/disk.mk
index 76a6f1e..aaa65d1 100644
--- a/mk/disk.mk
+++ b/mk/disk.mk
@@ -25,7 +25,7 @@ build/livedisk.iso: build/livedisk.bin.gz
 	isohybrid $@
 
 bootloader-efi/build/redox_bootloader/boot.efi:
-	env --unset=XARGO_RUST_SRC $(MAKE) -C bootloader-efi build/redox_bootloader/boot.efi
+	$(MAKE) -C bootloader-efi build/redox_bootloader/boot.efi
 
 build/bootloader.efi: bootloader-efi/build/redox_bootloader/boot.efi
 	cp $< $@