diff --git a/lenovo/t420/4.9-1860-g2761847/2019-06-02T04_11_29Z/rom_checksum.txt b/lenovo/t420/4.9-1860-g2761847/2019-06-02T04_11_29Z/rom_checksum.txt
new file mode 100644
index 0000000..9d18fd0
--- /dev/null
+++ b/lenovo/t420/4.9-1860-g2761847/2019-06-02T04_11_29Z/rom_checksum.txt
@@ -0,0 +1 @@
+a301a2719d6a8cffc7b66029843abece *build/coreboot.rom