diff --git a/lib/Testing/Support/LLVMBuild.txt b/lib/Testing/Support/LLVMBuild.txt
index 40853e8172d..173cfb4a558 100644
--- a/lib/Testing/Support/LLVMBuild.txt
+++ b/lib/Testing/Support/LLVMBuild.txt
@@ -20,3 +20,4 @@ type = Library
 name = TestingSupport
 parent = Libraries
 required_libraries = Support
+installed = 0