diff --git a/lang/lua-rs232/Makefile b/lang/lua-rs232/Makefile
index d5fb953319..a7b2d95057 100644
--- a/lang/lua-rs232/Makefile
+++ b/lang/lua-rs232/Makefile
@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=lua-rs232
 PKG_SOURCE_DATE:=2019-11-20
 PKG_SOURCE_VERSION:=c106c94d1a5a84e8582c936528303528608776c2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/srdgame/librs232
@@ -42,6 +42,7 @@ endef
 
 TARGET_CFLAGS += -ffunction-sections -fdata-sections
 TARGET_LDFLAGS += -Wl,--gc-sections,--as-needed
+MAKE_FLAGS += luadir='$$$${prefix}/lib/lua' luaexecdir='$$$${exec_prefix}/lib/lua'
 
 define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/include/librs232
@@ -49,7 +50,7 @@ define Build/InstallDev
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/librs232* $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/lua
-	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/lua/5.1/luars232* $(1)/usr/lib/lua
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/lua/luars232* $(1)/usr/lib/lua
 	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
 	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/librs232.pc $(1)/usr/lib/pkgconfig
 endef
@@ -58,7 +59,7 @@ define Package/lua-rs232/install
 	$(INSTALL_DIR) $(1)/usr/lib/
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/librs232.so* $(1)/usr/lib/
 	$(INSTALL_DIR) $(1)/usr/lib/lua
-	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/lua/5.1/luars232* $(1)/usr/lib/lua
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/lua/luars232* $(1)/usr/lib/lua
 endef
 
 $(eval $(call BuildPackage,lua-rs232))