1 files changed, 1 insertions, 1 deletions

diff --git a/src/WixToolset.Core/DecompileContext.cs b/src/WixToolset.Core/DecompileContext.cs
index 056785d6..a7ec03fd 100644
--- a/src/WixToolset.Core/DecompileContext.cs
+++ b/src/WixToolset.Core/DecompileContext.cs
@@ -22,7 +22,7 @@ namespace WixToolset.Core
 
         public OutputType DecompileType { get; set; }
 
-        public IEnumerable<IDecompilerExtension> Extensions { get; set; }
+        public IReadOnlyCollection<IDecompilerExtension> Extensions { get; set; }
 
         public string ExtractFolder { get; set; }