diff --git a/clang-tools-extra/clangd/indexer/CMakeLists.txt b/clang-tools-extra/clangd/indexer/CMakeLists.txt
--- a/clang-tools-extra/clangd/indexer/CMakeLists.txt
+++ b/clang-tools-extra/clangd/indexer/CMakeLists.txt
@@ -16,6 +16,7 @@
   clangIndex
   clangLex
   clangTooling
+  clangdSupport
 )
 target_link_libraries(clangd-indexer
   PRIVATE