1 files changed, 2 insertions, 0 deletions

diff --git a/src/WixToolset.Data/ITupleDefinitionCreator.cs b/src/WixToolset.Data/ITupleDefinitionCreator.cs
index 63477314..7d818be1 100644
--- a/src/WixToolset.Data/ITupleDefinitionCreator.cs
+++ b/src/WixToolset.Data/ITupleDefinitionCreator.cs
@@ -4,6 +4,8 @@ namespace WixToolset.Data
 {
     public interface ITupleDefinitionCreator
     {
+        void AddCustomTupleDefinition(IntermediateTupleDefinition definition);
+
         bool TryGetTupleDefinitionByName(string name, out IntermediateTupleDefinition tupleDefinition);
     }
 }