diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index 382280af2644937b076274b11ac6bb330655be53..968cae725491f8c0460811a352028c5587ba2760 100644
--- a/VisualStudio.gitignore
+++ b/VisualStudio.gitignore
@@ -171,6 +171,7 @@ ClientBin/
 *.publishsettings
 node_modules/
 bower_components/
+orleans.codegen.cs
 
 # RIA/Silverlight projects
 Generated_Code/