diff --git a/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs b/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
index a950ba3d6d..855178307b 100644
--- a/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
+++ b/src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs
@@ -30,6 +30,9 @@ namespace BizHawk.Client.Common
 				tas.HeaderEntries[kvp.Key] = kvp.Value;
 			}
 
+			// TODO: we have this version number string generated in multiple places
+			tas.HeaderEntries[HeaderKeys.MovieVersion] = $"BizHawk v2.0 Tasproj v{TasMovie.CurrentVersion}";
+
 			tas.SyncSettingsJson = old.SyncSettingsJson;
 
 			tas.Comments.Clear();
@@ -63,6 +66,9 @@ namespace BizHawk.Client.Common
 				bk2.HeaderEntries[kvp.Key] = kvp.Value;
 			}
 
+			// TODO: we have this version number string generated in multiple places
+			bk2.HeaderEntries[HeaderKeys.MovieVersion] = "BizHawk v2.0";
+
 			bk2.SyncSettingsJson = old.SyncSettingsJson;
 
 			bk2.Comments.Clear();
diff --git a/src/BizHawk.Tests/Client.Common/Movie/MovieServiceTests.cs b/src/BizHawk.Tests/Client.Common/Movie/MovieServiceTests.cs
index d16498f29b..ace5d5ab01 100644
--- a/src/BizHawk.Tests/Client.Common/Movie/MovieServiceTests.cs
+++ b/src/BizHawk.Tests/Client.Common/Movie/MovieServiceTests.cs
@@ -13,7 +13,7 @@ namespace BizHawk.Common.Tests.Client.Common.Movie
 		[DataRow("NonsenseString", 1.0)]
 		[DataRow("BizHawk v2.0", 1.0)]
 		[DataRow("BizHawk v2.0 Tasproj v1.0", 1.0)]
-		[DataRow("BizHawk v2.0 Tasproj v1.1", 1.1)]
+		[DataRow("BizHawk v2.0 Tasproj v1.1", TasMovie.CurrentVersion)]
 		public void ParseTasMovieVersion(string movieVersion, double expected)
 		{
 			var actual = MovieService.ParseTasMovieVersion(movieVersion);