diff --git a/clang-tools-extra/clangd/tool/CMakeLists.txt b/clang-tools-extra/clangd/tool/CMakeLists.txt
--- a/clang-tools-extra/clangd/tool/CMakeLists.txt
+++ b/clang-tools-extra/clangd/tool/CMakeLists.txt
@@ -17,6 +17,7 @@
 
 target_link_libraries(clangd
   PRIVATE
+  clangAST
   clangBasic
   clangTidy
   clangDaemon