diff --git a/lldb/lit/Unit/lit.site.cfg.in b/lldb/lit/Unit/lit.site.cfg.in
index 61c8179af39e..6d83023c54cb 100644
--- a/lldb/lit/Unit/lit.site.cfg.in
+++ b/lldb/lit/Unit/lit.site.cfg.in
@@ -1,5 +1,5 @@
-## Autogenerated by LLVM/lld configuration.
-# Do not edit!
+@LIT_SITE_CFG_IN_HEADER@
+
 config.llvm_src_root = "@LLVM_SOURCE_DIR@"
 config.llvm_obj_root = "@LLVM_BINARY_DIR@"
 config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
diff --git a/lldb/lit/lit.site.cfg.in b/lldb/lit/lit.site.cfg.in
index 10f3033da4af..f4105500c9f1 100644
--- a/lldb/lit/lit.site.cfg.in
+++ b/lldb/lit/lit.site.cfg.in
@@ -1,5 +1,5 @@
-## Autogenerated by LLVM/lldb configuration.
-# Do not edit!
+@LIT_SITE_CFG_IN_HEADER@
+
 config.llvm_src_root = "@LLVM_SOURCE_DIR@"
 config.llvm_obj_root = "@LLVM_BINARY_DIR@"
 config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"