diff --git a/src/main/java/one/oth3r/sit/file/ServerConfig.java b/src/main/java/one/oth3r/sit/file/ServerConfig.java
index dd183c5..ed337fc 100644
--- a/src/main/java/one/oth3r/sit/file/ServerConfig.java
+++ b/src/main/java/one/oth3r/sit/file/ServerConfig.java
@@ -24,9 +24,9 @@ public class ServerConfig implements CustomFile<ServerConfig> {
     private Double version = 2.2;
 
     @SerializedName("lang")
-    private String lang = "en_us";
+    private String lang = "en_US";
     @SerializedName("lang-options")
-    private final String langOptions = "en_us, it_it, pt_br, tr_tr, zh_tw, zh_ch, de_de";
+    private final String langOptions = "en_US, it_IT, pt_BR, tr_TR, zh_TW, zh_CH, de_DE";
 
     @SerializedName("keep-active")
     private Boolean keepActive = true;
diff --git a/src/main/resources/assets/sit-oth3r/lang/de_de.json b/src/main/resources/assets/sit-oth3r/lang/de_DE.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/de_de.json
rename to src/main/resources/assets/sit-oth3r/lang/de_DE.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/en_us.json b/src/main/resources/assets/sit-oth3r/lang/en_US.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/en_us.json
rename to src/main/resources/assets/sit-oth3r/lang/en_US.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/it_it.json b/src/main/resources/assets/sit-oth3r/lang/it_IT.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/it_it.json
rename to src/main/resources/assets/sit-oth3r/lang/it_IT.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/pt_br.json b/src/main/resources/assets/sit-oth3r/lang/pt_BR.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/pt_br.json
rename to src/main/resources/assets/sit-oth3r/lang/pt_BR.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/tr_tr.json b/src/main/resources/assets/sit-oth3r/lang/tr_TR.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/tr_tr.json
rename to src/main/resources/assets/sit-oth3r/lang/tr_TR.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/zh_cn.json b/src/main/resources/assets/sit-oth3r/lang/zh_CN.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/zh_cn.json
rename to src/main/resources/assets/sit-oth3r/lang/zh_CN.json
diff --git a/src/main/resources/assets/sit-oth3r/lang/zh_tw.json b/src/main/resources/assets/sit-oth3r/lang/zh_TW.json
similarity index 100%
rename from src/main/resources/assets/sit-oth3r/lang/zh_tw.json
rename to src/main/resources/assets/sit-oth3r/lang/zh_TW.json