diff --git a/llvm/lib/CMakeLists.txt b/llvm/lib/CMakeLists.txt
index 17313df0ecf6..5a41d65b0cf3 100644
--- a/llvm/lib/CMakeLists.txt
+++ b/llvm/lib/CMakeLists.txt
@@ -28,5 +28,7 @@ add_subdirectory(Passes)
 add_subdirectory(TextAPI)
 add_subdirectory(ToolDrivers)
 add_subdirectory(XRay)
-add_subdirectory(Testing)
+if (LLVM_INCLUDE_TESTS)
+  add_subdirectory(Testing)
+endif()
 add_subdirectory(WindowsManifest)