diff --git a/clang-tools-extra/include-cleaner/unittests/CMakeLists.txt b/clang-tools-extra/include-cleaner/unittests/CMakeLists.txt
--- a/clang-tools-extra/include-cleaner/unittests/CMakeLists.txt
+++ b/clang-tools-extra/include-cleaner/unittests/CMakeLists.txt
@@ -23,5 +23,6 @@
   PRIVATE
   clangIncludeCleaner
   clangTesting
+  LLVMTestingSupport
   )