diff --git a/src/BizHawk.Client.Common/movie/tasproj/TasMovieMarker.cs b/src/BizHawk.Client.Common/movie/tasproj/TasMovieMarker.cs
index 0ecdab859a..cde19c87f6 100644
--- a/src/BizHawk.Client.Common/movie/tasproj/TasMovieMarker.cs
+++ b/src/BizHawk.Client.Common/movie/tasproj/TasMovieMarker.cs
@@ -206,7 +206,7 @@ namespace BizHawk.Client.Common
 				return;
 			}
 
-			_movie.TasStateManager.EvictReserved(item.Frame);
+			_movie.TasStateManager.EvictReserved(item.Frame - 1);
 			_movie.ChangeLog.AddMarkerChange(null, item.Frame, item.Message);
 
 			base.Remove(item);
@@ -221,7 +221,7 @@ namespace BizHawk.Client.Common
 				if (match.Invoke(m))
 				{
 					_movie.ChangeLog.AddMarkerChange(null, m.Frame, m.Message);
-					_movie.TasStateManager.EvictReserved(m.Frame);
+					_movie.TasStateManager.EvictReserved(m.Frame - 1);
 				}
 			}