diff --git a/src/SIL.Machine.AspNetCore/Services/LanguageTagService.cs b/src/SIL.Machine.AspNetCore/Services/LanguageTagService.cs
index bc665e7eb..165fc41b1 100644
--- a/src/SIL.Machine.AspNetCore/Services/LanguageTagService.cs
+++ b/src/SIL.Machine.AspNetCore/Services/LanguageTagService.cs
@@ -5,6 +5,8 @@ public class LanguageTagService : ILanguageTagService
     private static readonly Dictionary<string, string> StandardLanguages =
         new() { { "ar", "arb" }, { "ms", "zsm" }, { "lv", "lvs" }, { "ne", "npi" }, { "sw", "swh" }, { "cmn", "zh" } };
 
+    private static readonly Dictionary<string, string> StandardScripts = new() { { "Kore", "Hang" } };
+
     private readonly Dictionary<string, string> _defaultScripts;
 
     private readonly Dictionary<string, string> _flores200Languages;
@@ -127,6 +129,10 @@ private string ResolveLanguageTag(string languageTag)
         else if (_defaultScripts.TryGetValue(languageSubtag, out string? tempScript))
             script = tempScript;
 
+        // There are a few extra conversions not in SIL Writing Systems that we need to handle
+        if (script is not null && StandardScripts.TryGetValue(script, out string? tempScript3))
+            script = tempScript3;
+
         if (script is not null)
             return $"{iso639_3Code}_{script}";
         else
diff --git a/tests/SIL.Machine.AspNetCore.Tests/Services/LanguageTagServiceTests.cs b/tests/SIL.Machine.AspNetCore.Tests/Services/LanguageTagServiceTests.cs
index db7cae47d..ba664cb27 100644
--- a/tests/SIL.Machine.AspNetCore.Tests/Services/LanguageTagServiceTests.cs
+++ b/tests/SIL.Machine.AspNetCore.Tests/Services/LanguageTagServiceTests.cs
@@ -26,6 +26,8 @@ public LanguageTagServiceTests()
     [TestCase("arb", "arb_Arab", Description = "Arabic")]
     [TestCase("eng", "eng_Latn", Description = "InsteadOfISO639_1")]
     [TestCase("eng-Latn", "eng_Latn", Description = "DashToUnderscore")]
+    [TestCase("kor", "kor_Hang", Description = "KoreanScript")]
+    [TestCase("kor_Kore", "kor_Hang", Description = "KoreanScriptCorrection")]
     public void ConvertToFlores200CodeTest(string language, string internalCodeTruth)
     {
         _languageTagService.ConvertToFlores200Code(language, out string internalCode);