1 files changed, 3 insertions, 2 deletions

diff --git a/src/WixToolset.Extensibility/Services/IWindowsInstallerBackendHelper.cs b/src/WixToolset.Extensibility/Services/IWindowsInstallerBackendHelper.cs
index 573620df..4552c7cb 100644
--- a/src/WixToolset.Extensibility/Services/IWindowsInstallerBackendHelper.cs
+++ b/src/WixToolset.Extensibility/Services/IWindowsInstallerBackendHelper.cs
@@ -2,6 +2,7 @@
 
 namespace WixToolset.Extensibility.Services
 {
+    using System.Collections.Generic;
     using WixToolset.Data;
     using WixToolset.Data.WindowsInstaller;
 
@@ -10,8 +11,8 @@ namespace WixToolset.Extensibility.Services
     /// </summary>
     public interface IWindowsInstallerBackendHelper
     {
-        bool TryAddTupleToOutputMatchingTableDefinitions(IntermediateTuple tuple, WindowsInstallerData output, TableDefinition[] tableDefinitions);
+        bool TryAddTupleToOutputMatchingTableDefinitions(IntermediateTuple tuple, WindowsInstallerData output, IEnumerable<TableDefinition> tableDefinitions);
 
-        bool TryAddTupleToOutputMatchingTableDefinitions(IntermediateTuple tuple, WindowsInstallerData output, TableDefinition[] tableDefinitions, bool columnZeroIsId);
+        bool TryAddTupleToOutputMatchingTableDefinitions(IntermediateTuple tuple, WindowsInstallerData output, IEnumerable<TableDefinition> tableDefinitions, bool columnZeroIsId);
     }
 }