1 files changed, 2 insertions, 2 deletions

diff --git a/src/WixToolset.Data/Tuples/EnvironmentTuple.cs b/src/WixToolset.Data/Tuples/EnvironmentTuple.cs
index a6a10ac5..98c51f4d 100644
--- a/src/WixToolset.Data/Tuples/EnvironmentTuple.cs
+++ b/src/WixToolset.Data/Tuples/EnvironmentTuple.cs
@@ -84,13 +84,13 @@ namespace WixToolset.Data.Tuples
         public EnvironmentActionType? Action
         {
             get => (EnvironmentActionType?)this.Fields[(int)EnvironmentTupleFields.Action].AsNullableNumber();
-            set => this.Set((int)EnvironmentTupleFields.Action, (int)value);
+            set => this.Set((int)EnvironmentTupleFields.Action, (int?)value);
         }
 
         public EnvironmentPartType? Part
         {
             get => (EnvironmentPartType?)this.Fields[(int)EnvironmentTupleFields.Part].AsNullableNumber();
-            set => this.Set((int)EnvironmentTupleFields.Part, (int)value);
+            set => this.Set((int)EnvironmentTupleFields.Part, (int?)value);
         }
 
         public bool Permanent