diff --git a/src/mainboard/starlabs/starbook/variants/mtl/ramstage.c b/src/mainboard/starlabs/starbook/variants/mtl/ramstage.c
index 0d400f3977..e602932bfe 100644
--- a/src/mainboard/starlabs/starbook/variants/mtl/ramstage.c
+++ b/src/mainboard/starlabs/starbook/variants/mtl/ramstage.c
@@ -6,4 +6,9 @@
 void mainboard_silicon_init_params(FSP_S_CONFIG *supd)
 {
 	supd->TcNotifyIgd = 2; // Auto
+	/* eSPI GPIOs */
+	supd->SerialIoSpiCsPinMux[0] = 0x14a48a;
+	supd->SerialIoSpiClkPinMux[0] = 0x14a48b;
+	supd->SerialIoSpiMisoPinMux[0] = 0x14a48c;
+	supd->SerialIoSpiMosiPinMux[0] = 0x14a48d;
 }