diff --git a/llvm/include/llvm/Support/LSP/Protocol.h b/llvm/include/llvm/Support/LSP/Protocol.h
index 30d68bad6691..a75ac291d1bc 100644
--- a/llvm/include/llvm/Support/LSP/Protocol.h
+++ b/llvm/include/llvm/Support/LSP/Protocol.h
@@ -494,6 +494,18 @@ LLVM_ABI_FOR_TEST bool fromJSON(const llvm::json::Value &value,
                                 DidCloseTextDocumentParams &result,
                                 llvm::json::Path path);
 
+//===----------------------------------------------------------------------===//
+// DidSaveTextDocumentParams
+//===----------------------------------------------------------------------===//
+
+struct DidSaveTextDocumentParams {
+  /// The document that was saved.
+  TextDocumentIdentifier textDocument;
+};
+
+LLVM_ABI_FOR_TEST bool fromJSON(const llvm::json::Value &,
+                                DidSaveTextDocumentParams &, llvm::json::Path);
+
 //===----------------------------------------------------------------------===//
 // DidChangeTextDocumentParams
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Support/LSP/Protocol.cpp b/llvm/lib/Support/LSP/Protocol.cpp
index c2957bdc0dac..5c2379431e90 100644
--- a/llvm/lib/Support/LSP/Protocol.cpp
+++ b/llvm/lib/Support/LSP/Protocol.cpp
@@ -502,6 +502,16 @@ bool llvm::lsp::fromJSON(const llvm::json::Value &Value,
   return O && O.map("textDocument", Result.textDocument);
 }
 
+//===----------------------------------------------------------------------===//
+// DidSaveTextDocumentParams
+//===----------------------------------------------------------------------===//
+
+bool llvm::lsp::fromJSON(const llvm::json::Value &Params,
+                         DidSaveTextDocumentParams &R, llvm::json::Path P) {
+  llvm::json::ObjectMapper O(Params, P);
+  return O && O.map("textDocument", R.textDocument);
+}
+
 //===----------------------------------------------------------------------===//
 // DidChangeTextDocumentParams
 //===----------------------------------------------------------------------===//