diff --git a/clang-tools-extra/clangd/TUScheduler.cpp b/clang-tools-extra/clangd/TUScheduler.cpp
--- a/clang-tools-extra/clangd/TUScheduler.cpp
+++ b/clang-tools-extra/clangd/TUScheduler.cpp
@@ -919,7 +919,9 @@
                       llvm::unique_function<void()> Action) {
   if (!PreambleTasks)
     return Action();
-  PreambleTasks->runAsync(Name, std::move(Action));
+  auto ActionWithCtx = [Ctx = Context::current().clone(),
+                        Action = std::move(Action)]() mutable { Action(); };
+  PreambleTasks->runAsync(Name, std::move(ActionWithCtx));
 }
 
 void TUScheduler::runWithAST(