diff --git a/Flow.Launcher.Infrastructure/PinyinAlphabet.cs b/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
index d878a3d0e..b5344c7e9 100644
--- a/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
+++ b/Flow.Launcher.Infrastructure/PinyinAlphabet.cs
@@ -48,7 +48,7 @@ namespace Flow.Launcher.Infrastructure
             string schemaKey = _settings.DoublePinyinSchema.ToString(); // Convert enum to string  
             if (!table.TryGetValue(schemaKey, out var value))
             {
-                throw new InvalidOperationException("DoublePinyinSchema is invalid or double pinyin table is broken.");
+                throw new ArgumentException("DoublePinyinSchema is invalid or double pinyin table is broken.");
             }
             currentDoublePinyinTable = new ReadOnlyDictionary<string, string>(value);
         }