diff --git a/board/chromebook/elm/patches/linux-headers/linux-headers.hash b/board/chromebook/elm/patches/linux-headers/linux-headers.hash
new file mode 120000
index 0000000000..5808d92afe
--- /dev/null
+++ b/board/chromebook/elm/patches/linux-headers/linux-headers.hash
@@ -0,0 +1 @@
+../linux/linux.hash
\ No newline at end of file
diff --git a/board/chromebook/elm/patches/linux/linux.hash b/board/chromebook/elm/patches/linux/linux.hash
new file mode 100644
index 0000000000..88aa603ac5
--- /dev/null
+++ b/board/chromebook/elm/patches/linux/linux.hash
@@ -0,0 +1,2 @@
+# Locally computed
+sha256  dcdf99e43e98330d925016985bfbc7b83c66d367b714b2de0cbbfcbf83d8ca43  linux-5.10.tar.xz
diff --git a/configs/chromebook_elm_defconfig b/configs/chromebook_elm_defconfig
index 827d929631..0e8b6287c3 100644
--- a/configs/chromebook_elm_defconfig
+++ b/configs/chromebook_elm_defconfig
@@ -35,3 +35,7 @@ BR2_PACKAGE_HOST_PARTED=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS_FIT_SUPPORT=y
 BR2_PACKAGE_HOST_VBOOT_UTILS=y
+
+# Misc
+BR2_GLOBAL_PATCH_DIR="board/chromebook/elm/patches"
+BR2_DOWNLOAD_FORCE_CHECK_HASHES=y