diff --git a/core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php b/core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php
index f92929c336..0e18d4a86e 100644
--- a/core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php
+++ b/core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php
@@ -46,7 +46,8 @@ public function __construct(\Traversable $namespaces, CacheBackendInterface $cac
   protected function findDefinitions() {
     $definitions = parent::findDefinitions();
 
-    // Sort the definitions before they are cached.
+    // Sort the definitions by their weight while preserving the original order
+    // for those with matching weights.
     $weights = array_map(function (SectionStorageDefinition $definition) {
       return $definition->getWeight();
     }, $definitions);