diff --git a/package/rpi-firmware/rpi-firmware.mk b/package/rpi-firmware/rpi-firmware.mk
index cbacacd92b..96b10f4fd5 100644
--- a/package/rpi-firmware/rpi-firmware.mk
+++ b/package/rpi-firmware/rpi-firmware.mk
@@ -23,7 +23,7 @@ endif
 
 ifeq ($(BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTB_OVERLAYS),y)
 define RPI_FIRMWARE_INSTALL_DTB_OVERLAYS
-	for ovldtb in  $(@D)/boot/overlays/*.dtb; do \
+	for ovldtb in  $(@D)/boot/overlays/*.dtbo; do \
 		$(INSTALL) -D -m 0644 $${ovldtb} $(BINARIES_DIR)/rpi-firmware/overlays/$${ovldtb##*/} || exit 1; \
 	done
 endef