diff --git a/package/rtl8821cu/rtl8821cu.mk b/package/rtl8821cu/rtl8821cu.mk
index 2a42a0f28e..5b21b04404 100644
--- a/package/rtl8821cu/rtl8821cu.mk
+++ b/package/rtl8821cu/rtl8821cu.mk
@@ -29,5 +29,11 @@ RTL8821CU_MODULE_MAKE_OPTS = \
 	KVER=$(LINUX_VERSION_PROBED) \
 	USER_EXTRA_CFLAGS="$(RTL8821CU_USER_EXTRA_CFLAGS)"
 
+define RTL8821CU_INSTALL_MODPROBE_CONF
+	$(INSTALL) -m 0644 -D $(@D)/8821cu.conf \
+		$(TARGET_DIR)/etc/modprobe.d/8821cu.conf
+endef
+RTL8821CU_POST_INSTALL_TARGET_HOOKS += RTL8821CU_INSTALL_MODPROBE_CONF
+
 $(eval $(kernel-module))
 $(eval $(generic-package))