diff --git a/clang-tools-extra/clangd/tool/Check.cpp b/clang-tools-extra/clangd/tool/Check.cpp
--- a/clang-tools-extra/clangd/tool/Check.cpp
+++ b/clang-tools-extra/clangd/tool/Check.cpp
@@ -123,6 +123,7 @@
     std::vector<std::string> CC1Args;
     Inputs.CompileCommand = Cmd;
     Inputs.TFS = &TFS;
+    Inputs.ClangTidyProvider = Opts.ClangTidyProvider;
     if (Contents.hasValue()) {
       Inputs.Contents = *Contents;
       log("Imaginary source file contents:\n{0}", Inputs.Contents);