1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Core/Bind/ExtractEmbeddedFilesCommand.cs b/src/WixToolset.Core/Bind/ExtractEmbeddedFilesCommand.cs
index 981a991f..ec2d8896 100644
--- a/src/WixToolset.Core/Bind/ExtractEmbeddedFilesCommand.cs
+++ b/src/WixToolset.Core/Bind/ExtractEmbeddedFilesCommand.cs
@@ -17,7 +17,7 @@ namespace WixToolset.Core.Bind
             this.FilesWithEmbeddedFiles = embeddedFiles;
         }
 
-        public IEnumerable<ITrackedFile> TrackedFiles { get; private set; }
+        public IReadOnlyList<ITrackedFile> TrackedFiles { get; private set; }
 
         private IBackendHelper BackendHelper { get; }