1 files changed, 2 insertions, 2 deletions

diff --git a/src/WixToolset.Data/Tuples/MediaTuple.cs b/src/WixToolset.Data/Tuples/MediaTuple.cs
index 009a588f..a9cbb034 100644
--- a/src/WixToolset.Data/Tuples/MediaTuple.cs
+++ b/src/WixToolset.Data/Tuples/MediaTuple.cs
@@ -55,9 +55,9 @@ namespace WixToolset.Data.Tuples
             set => this.Set((int)MediaTupleFields.DiskId, value);
         }
 
-        public int LastSequence
+        public int? LastSequence
         {
-            get => (int)this.Fields[(int)MediaTupleFields.LastSequence];
+            get => (int?)this.Fields[(int)MediaTupleFields.LastSequence];
             set => this.Set((int)MediaTupleFields.LastSequence, value);
         }