diff --git a/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs b/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
index 1378359..e915c77 100644
--- a/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
+++ b/FFMpegCore/FFMpeg/Arguments/DemuxConcatArgument.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -15,7 +16,7 @@ public class DemuxConcatArgument : IInputArgument
         public readonly IEnumerable<string> Values;
         public DemuxConcatArgument(IEnumerable<string> values)
         {
-            Values = values;
+            Values = values.Select(value => $"file '{value}'");
         }
         private readonly string _tempFileName = Path.Combine(FFMpegOptions.Options.TempDirectory, Guid.NewGuid() + ".txt");
 
@@ -25,4 +26,4 @@ public DemuxConcatArgument(IEnumerable<string> values)
 
         public string Text => $"-f concat -safe 0 -i \"{_tempFileName}\"";
     }
-}
\ No newline at end of file
+}