diff --git a/CSharp.gitignore b/CSharp.gitignore
index adaf4ecc9cdc90a105d2ee5f2eea84918fda3bbe..b1e742ff7acf72c66820d572a480bb6d920fc7c7 100644
--- a/CSharp.gitignore
+++ b/CSharp.gitignore
@@ -76,6 +76,10 @@ publish
 # Publish Web Output
 *.Publish.xml
 
+# Windows Azure Build Output
+csx
+*.build.csdef
+
 # Others
 [Bb]in
 [Oo]bj