diff --git a/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs b/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
index 6975252..e915c77 100644
--- a/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
+++ b/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
@@ -16,7 +16,7 @@ public class DemuxConcatArgument : IInputArgument
         public readonly IEnumerable<string> Values;
         public DemuxConcatArgument(IEnumerable<string> values)
         {
-            Values = values.Select(value => $"'file '{value}'");
+            Values = values.Select(value => $"file '{value}'");
         }
         private readonly string _tempFileName = Path.Combine(FFMpegOptions.Options.TempDirectory, Guid.NewGuid() + ".txt");
 
@@ -26,4 +26,4 @@ public DemuxConcatArgument(IEnumerable<string> values)
 
         public string Text => $"-f concat -safe 0 -i \"{_tempFileName}\"";
     }
-}
\ No newline at end of file
+}