diff --git a/config.toml b/config.toml
index 08349848..650fcb87 100644
--- a/config.toml
+++ b/config.toml
@@ -116,6 +116,7 @@ func.open.policy = 'ff'
 [branches]
 min-free-space = 123
 
+# TIER 0
 [[branches.tier]]
 [[branches.tier.branch]]
 name = 'branch0'
@@ -133,6 +134,7 @@ path-type = 'literal'
 mode = 'RW'
 if-not-mountpoint = 'fail' # 'fail' | 'deactivate' ?
 
+# TIER 1
 [[branches.tier]]
 [[branches.tier.branch]]
 name = 'branch0'
diff --git a/src/mergerfs.cpp b/src/mergerfs.cpp
index bff3e998..f8524e18 100644
--- a/src/mergerfs.cpp
+++ b/src/mergerfs.cpp
@@ -302,7 +302,7 @@ int
 main(int    argc_,
      char **argv_)
 {
-  auto data = toml::parse("config.toml");
+  auto data = toml::parse<toml::preserve_comments>("config.toml");
 
   std::cout << data["branches"] << '\n';
   //  Branches2 b(data["branches"]);