diff --git a/soc/arm/microchip_mec/mec1501/dts_fixup.h b/soc/arm/microchip_mec/mec1501/dts_fixup.h
index cda6fd49656..c23a40006fb 100644
--- a/soc/arm/microchip_mec/mec1501/dts_fixup.h
+++ b/soc/arm/microchip_mec/mec1501/dts_fixup.h
@@ -186,3 +186,10 @@
 	DT_MICROCHIP_XEC_QMSPI_40070000_DLDH
 #define DT_SPI_XEC_QMSPI_0_DCSDA \
 	DT_MICROCHIP_XEC_QMSPI_40070000_DCSDA
+
+#define DT_ESPI_MCHP_XEC_0_IRQ_PRIORITY \
+	DT_MICROCHIP_XEC_ESPI_400F3400_IRQ_0_PRIORITY
+#define DT_ESPI_MCHP_XEC_1_IRQ_PRIORITY \
+	DT_MICROCHIP_XEC_ESPI_400F3400_IRQ_1_PRIORITY
+#define DT_ESPI_MCHP_XEC_2_IRQ_PRIORITY \
+	DT_MICROCHIP_XEC_ESPI_400F3400_IRQ_2_PRIORITY