diff --git a/clang-tools-extra/clangd/ClangdServer.h b/clang-tools-extra/clangd/ClangdServer.h
--- a/clang-tools-extra/clangd/ClangdServer.h
+++ b/clang-tools-extra/clangd/ClangdServer.h
@@ -121,7 +121,7 @@
     ClangTidyOptionsBuilder GetClangTidyOptions;
 
     /// If true, turn on the `-frecovery-ast` clang flag.
-    bool BuildRecoveryAST = false;
+    bool BuildRecoveryAST = true;
 
     /// If true, turn on the `-frecovery-ast-type` clang flag.
     bool PreserveRecoveryASTType = false;
@@ -354,7 +354,7 @@
   bool SuggestMissingIncludes = false;
 
   // If true, preserve expressions in AST for broken code.
-  bool BuildRecoveryAST = false;
+  bool BuildRecoveryAST = true;
   // If true, preserve the type for recovery AST.
   bool PreserveRecoveryASTType = false;
 
diff --git a/clang-tools-extra/clangd/tool/ClangdMain.cpp b/clang-tools-extra/clangd/tool/ClangdMain.cpp
--- a/clang-tools-extra/clangd/tool/ClangdMain.cpp
+++ b/clang-tools-extra/clangd/tool/ClangdMain.cpp
@@ -281,11 +281,10 @@
 opt<bool> RecoveryAST{
     "recovery-ast",
     cat(Features),
-    desc("Preserve expressions in AST for broken code (C++ only). Note that "
-         "this feature is experimental and may lead to crashes"),
-    init(false),
-    Hidden,
+    desc("Preserve expressions in AST for broken code (C++ only)."),
+    init(ClangdServer::Options().BuildRecoveryAST),
 };
+
 opt<bool> RecoveryASTType{
     "recovery-ast-type",
     cat(Features),