diff --git a/test/TestSites/project.json b/test/TestSites/project.json
index e3bbecbe60..b2dd0fd0b3 100644
--- a/test/TestSites/project.json
+++ b/test/TestSites/project.json
@@ -34,6 +34,7 @@
     "win7-x64": { },
     "win7-x86": { },
     "osx.10.10-x64": { },
+    "osx.10.11-x64": { },
     "ubuntu.14.04-x64": { },
     "ubuntu.15.04-x64": { }
   }