diff --git a/src/main/resources/assets/refinedstorage/lang/de_DE.lang b/src/main/resources/assets/refinedstorage/lang/de_de.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/de_DE.lang
rename to src/main/resources/assets/refinedstorage/lang/de_de.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/en_US.lang b/src/main/resources/assets/refinedstorage/lang/en_us.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/en_US.lang
rename to src/main/resources/assets/refinedstorage/lang/en_us.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/fr_FR.lang b/src/main/resources/assets/refinedstorage/lang/fr_fr.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/fr_FR.lang
rename to src/main/resources/assets/refinedstorage/lang/fr_fr.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/nl_NL.lang b/src/main/resources/assets/refinedstorage/lang/nl_nl.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/nl_NL.lang
rename to src/main/resources/assets/refinedstorage/lang/nl_nl.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/pt_BR.lang b/src/main/resources/assets/refinedstorage/lang/pt_br.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/pt_BR.lang
rename to src/main/resources/assets/refinedstorage/lang/pt_br.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/ru_RU.lang b/src/main/resources/assets/refinedstorage/lang/ru_ru.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/ru_RU.lang
rename to src/main/resources/assets/refinedstorage/lang/ru_ru.lang
diff --git a/src/main/resources/assets/refinedstorage/lang/zh_CN.lang b/src/main/resources/assets/refinedstorage/lang/zh_cn.lang
similarity index 100%
rename from src/main/resources/assets/refinedstorage/lang/zh_CN.lang
rename to src/main/resources/assets/refinedstorage/lang/zh_cn.lang
diff --git a/src/main/resources/pack.mcmeta b/src/main/resources/pack.mcmeta
new file mode 100644
index 000000000..94103e20b
--- /dev/null
+++ b/src/main/resources/pack.mcmeta
@@ -0,0 +1,6 @@
+{
+    "pack": {
+      "description": "Refined Storage resources",
+      "pack_format": 3
+    }
+}
\ No newline at end of file