diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 5712303123..92b345f126 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -698,7 +698,7 @@ namespace MediaBrowser.Controller.MediaEncoding
 
             if (state.AudioStream != null && state.AudioStream.IsExternal)
             {
-                arg.Append(" -i \"").Append(state.AudioStream.Path).Append("\"");
+                arg.Append(" -i \"").Append(state.AudioStream.Path).Append('"');
             }
 
             return arg.ToString();