diff --git a/Flow.Launcher.Infrastructure/Alphabet.cs b/Flow.Launcher.Infrastructure/Alphabet.cs
index 11fd6873b..eda9caaae 100644
--- a/Flow.Launcher.Infrastructure/Alphabet.cs
+++ b/Flow.Launcher.Infrastructure/Alphabet.cs
@@ -56,7 +56,7 @@ namespace Flow.Launcher.Infrastructure
 
         private string GetFirstPinyinChar(string content)
         {
-            return new string(content.Split(";").Select(c => c.First()).ToArray());
+            return string.Concat(content.Split(';').Select(x => x.First()));
         }
     }
 }
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