diff --git a/src/ytdl_sub/plugins/chapters.py b/src/ytdl_sub/plugins/chapters.py
index 7a1c9333..0e185f66 100644
--- a/src/ytdl_sub/plugins/chapters.py
+++ b/src/ytdl_sub/plugins/chapters.py
@@ -199,7 +199,7 @@ class ChaptersOptions(OptionsDictValidator):
     def added_variables(
         self, resolved_variables: Set[str], unresolved_variables: Set[str]
     ) -> Dict[PluginOperation, Set[str]]:
-        return {PluginOperation.MODIFY_ENTRY: {"ytdl_sub_chapters_from_comments"}}
+        return {PluginOperation.MODIFY_ENTRY: {ytdl_sub_chapters_from_comments.variable_name}}
 
 
 class ChaptersPlugin(Plugin[ChaptersOptions]):