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
@@ -337,7 +337,7 @@
     "folding-ranges",
     cat(Features),
     desc("Enable preview of FoldingRanges feature"),
-    init(false),
+    init(true),
     Hidden,
 };