diff --git a/src/mainboard/google/samus/devicetree.cb b/src/mainboard/google/samus/devicetree.cb
index a511c27e9a..1d7d5a1033 100644
--- a/src/mainboard/google/samus/devicetree.cb
+++ b/src/mainboard/google/samus/devicetree.cb
@@ -43,6 +43,7 @@ chip soc/intel/broadwell
 	register "gpe0_en_4" = "0x00000000"
 
 	register "sata_port_map" = "0x1"
+	register "sata_port0_gen3_tx" = "0x72"
 	register "sio_acpi_mode" = "1"
 
 	# Set I2C0 to 1.8V