diff --git a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/AssParserTests.cs b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/AssParserTests.cs
index 395dfa309f..e14850eed7 100644
--- a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/AssParserTests.cs
+++ b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/AssParserTests.cs
@@ -15,7 +15,7 @@ namespace Jellyfin.MediaEncoding.Subtitles.Tests
         {
             using (var stream = File.OpenRead("Test Data/example.ass"))
             {
-                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, ".ass");
+                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, "ass");
                 Assert.Single(parsed.TrackEvents);
                 var trackEvent = parsed.TrackEvents[0];
 
diff --git a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SrtParserTests.cs b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SrtParserTests.cs
index e9745f17dc..0038b18736 100644
--- a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SrtParserTests.cs
+++ b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SrtParserTests.cs
@@ -15,7 +15,7 @@ namespace Jellyfin.MediaEncoding.Subtitles.Tests
         {
             using (var stream = File.OpenRead("Test Data/example.srt"))
             {
-                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, ".srt");
+                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, "srt");
                 Assert.Equal(2, parsed.TrackEvents.Count);
 
                 var trackEvent1 = parsed.TrackEvents[0];
@@ -37,7 +37,7 @@ namespace Jellyfin.MediaEncoding.Subtitles.Tests
         {
             using (var stream = File.OpenRead("Test Data/example2.srt"))
             {
-                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, ".srt");
+                var parsed = new SubtitleEditParser(new NullLogger<SubtitleEditParser>()).Parse(stream, "srt");
                 Assert.Equal(2, parsed.TrackEvents.Count);
 
                 var trackEvent1 = parsed.TrackEvents[0];
diff --git a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SsaParserTests.cs b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SsaParserTests.cs
index bb6ed22eb2..3b9a71690c 100644
--- a/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SsaParserTests.cs
+++ b/tests/Jellyfin.MediaEncoding.Tests/Subtitles/SsaParserTests.cs
@@ -21,7 +21,7 @@ namespace Jellyfin.MediaEncoding.Subtitles.Tests
         {
             using (Stream stream = new MemoryStream(Encoding.UTF8.GetBytes(ssa)))
             {
-                SubtitleTrackInfo subtitleTrackInfo = _parser.Parse(stream, ".ssa");
+                SubtitleTrackInfo subtitleTrackInfo = _parser.Parse(stream, "ssa");
 
                 Assert.Equal(expectedSubtitleTrackEvents.Count, subtitleTrackInfo.TrackEvents.Count);
 
@@ -76,7 +76,7 @@ namespace Jellyfin.MediaEncoding.Subtitles.Tests
         {
             using (var stream = File.OpenRead("Test Data/example.ssa"))
             {
-                var parsed = _parser.Parse(stream, ".ssa");
+                var parsed = _parser.Parse(stream, "ssa");
                 Assert.Single(parsed.TrackEvents);
                 var trackEvent = parsed.TrackEvents[0];