diff --git a/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs b/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
index 3be87820e6..e596674d28 100644
--- a/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
+++ b/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
@@ -17,7 +17,7 @@ namespace BizHawk.Client.Common.MovieConversionExtensions
 	{
 		public static ITasMovie ToTasMovie(this IMovie old)
 		{
-			string newFilename = GetNewFileName(old.Filename);
+			string newFilename = ConvertFileNameToTasMovie(old.Filename);
 			var tas = (ITasMovie)MovieService.Get(newFilename);
 			tas.CopyLog(old.GetLogEntries());
 
@@ -85,7 +85,7 @@ namespace BizHawk.Client.Common.MovieConversionExtensions
 
 		public static ITasMovie ConvertToSavestateAnchoredMovie(this ITasMovie old, int frame, byte[] savestate)
 		{
-			string newFilename = GetNewFileName(old.Filename);
+			string newFilename = ConvertFileNameToTasMovie(old.Filename);
 
 			var tas = (ITasMovie)MovieService.Get(newFilename);
 			tas.BinarySavestate = savestate;
@@ -142,7 +142,7 @@ namespace BizHawk.Client.Common.MovieConversionExtensions
 
 		public static ITasMovie ConvertToSaveRamAnchoredMovie(this ITasMovie old, byte[] saveRam)
 		{
-			string newFilename = GetNewFileName(old.Filename);
+			string newFilename = ConvertFileNameToTasMovie(old.Filename);
 
 			var tas = (ITasMovie) MovieService.Get(newFilename);
 			tas.SaveRam = saveRam;
@@ -298,7 +298,7 @@ namespace BizHawk.Client.Common.MovieConversionExtensions
 				.CoreName;
 		}
 
-		public static string GetNewFileName(string oldFileName)
+		internal static string ConvertFileNameToTasMovie(string oldFileName)
 		{
 			string newFileName = Path.ChangeExtension(oldFileName, $".{TasMovie.Extension}");
 			int fileSuffix = 0;
diff --git a/src/BizHawk.Tests/Client.Common/Movie/MovieConversionExtensionTests.cs b/src/BizHawk.Tests/Client.Common/Movie/MovieConversionExtensionTests.cs
index d4b1e0698b..96b913567c 100644
--- a/src/BizHawk.Tests/Client.Common/Movie/MovieConversionExtensionTests.cs
+++ b/src/BizHawk.Tests/Client.Common/Movie/MovieConversionExtensionTests.cs
@@ -12,9 +12,9 @@ namespace BizHawk.Common.Tests.Client.Common.Movie
 		[DataRow("C:\\Temp\\TestMovie.bk2", "C:\\Temp\\TestMovie.tasproj")]
 		[DataRow("C:\\Temp\\TestMovie.tasproj.bk2", "C:\\Temp\\TestMovie.tasproj.tasproj")]
 		[DataRow("C:\\Temp\\TestMovie.tasproj", "C:\\Temp\\TestMovie.tasproj")]
-		public void GetNewFileNameFromBk2(string original, string expected)
+		public void ConvertFileNameToTasMovie(string original, string expected)
 		{
-			var actual = MovieConversionExtensions.GetNewFileName(original);
+			var actual = MovieConversionExtensions.ConvertFileNameToTasMovie(original);
 			Assert.AreEqual(expected, actual);
 		}
 	}