diff --git a/VisualStudio.gitignore b/VisualStudio.gitignore
index 382280af..968cae72 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/