diff --git a/THP-Converter-CS-CLI/Classes/MP4Video.cs b/THP-Converter-CS-CLI/Classes/MP4Video.cs
index 5933285..f745f29 100644
--- a/THP-Converter-CS-CLI/Classes/MP4Video.cs
+++ b/THP-Converter-CS-CLI/Classes/MP4Video.cs
@@ -71,7 +71,7 @@ public void Convert()
                 UseShellExecute = false,
                 WindowStyle = ProcessWindowStyle.Hidden,
                 FileName = "cmd.exe",
-                Arguments = $"/c thpconv.exe -j temp/*.jpg -r {Rate}{(UseAudio ? " - s temp.wav" : "")} -d output.thp"
+                Arguments = $"/c thpconv.exe -j temp/*.jpg -r {Rate}{(UseAudio ? " -s temp.wav" : "")} -d output.thp"
             }).WaitForExit();
             File.Move("output.thp", OutFile.FullName);
             Console.WriteLine($"Converted {InFile.Name} to {OutFile.Name}");