diff --git a/package/rs485conf/rs485conf.mk b/package/rs485conf/rs485conf.mk
index 7fda39cc44..8749268fd5 100644
--- a/package/rs485conf/rs485conf.mk
+++ b/package/rs485conf/rs485conf.mk
@@ -10,11 +10,11 @@ RS485CONF_LICENSE = BSD-3c
 RS485CONF_LICENSE_FILES = LICENSE
 
 define RS485CONF_BUILD_CMDS
-	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
+	$(TARGET_MAKE_ENV) $(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
 endef
 
 define RS485CONF_INSTALL_TARGET_CMDS
-	$(MAKE) PREFIX="$(TARGET_DIR)/usr" -C $(@D) install
+	$(TARGET_MAKE_ENV) $(MAKE) PREFIX="$(TARGET_DIR)/usr" -C $(@D) install
 endef
 
 $(eval $(generic-package))