diff --git a/clang-tools-extra/clangd/Protocol.h b/clang-tools-extra/clangd/Protocol.h
--- a/clang-tools-extra/clangd/Protocol.h
+++ b/clang-tools-extra/clangd/Protocol.h
@@ -36,6 +36,11 @@
 #include <string>
 #include <vector>
 
+// This file is using the LSP syntax for identifier names which is different
+// from the LLVM coding standard. To avoid the clang-tidy warnings, we're
+// disabling one check here.
+// NOLINTBEGIN(readability-identifier-naming)
+
 namespace clang {
 namespace clangd {
 
@@ -1794,4 +1799,6 @@
 };
 } // namespace llvm
 
+// NOLINTEND(readability-identifier-naming)
+
 #endif