diff --git a/hw/bsp/feather_m0_express/board.mk b/hw/bsp/feather_m0_express/board.mk
index d4530a47..a147cf82 100644
--- a/hw/bsp/feather_m0_express/board.mk
+++ b/hw/bsp/feather_m0_express/board.mk
@@ -25,7 +25,7 @@ INC += \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/include \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/include \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/utils/include \
-	$(TOP)/hw/mcu/microchip/samd/asf4/samd51/hpl/pm/ \
+	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/pm/ \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/port \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hri \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/CMSIS/Include
diff --git a/hw/bsp/metro_m0_express/board.mk b/hw/bsp/metro_m0_express/board.mk
index 668d9a5b..4d6dedcf 100644
--- a/hw/bsp/metro_m0_express/board.mk
+++ b/hw/bsp/metro_m0_express/board.mk
@@ -25,7 +25,7 @@ INC += \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/include \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/include \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hal/utils/include \
-	$(TOP)/hw/mcu/microchip/samd/asf4/samd51/hpl/pm/ \
+	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/pm/ \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hpl/port \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/hri \
 	$(TOP)/hw/mcu/microchip/samd/asf4/samd21/CMSIS/Include