diff --git a/.gitignore b/.gitignore
index 2b5048c6..38a2d5a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ UpgradeLog.XML
 projects/XCode4/CatchSelfTest/DerivedData
 projects/XCode4/OCTest/DerivedData
 projects/XCode4/iOSTest/Build
+projects/XCode4/iOSTest/DerivedData