diff --git a/homeassistant/components/logbook/processor.py b/homeassistant/components/logbook/processor.py
index 32301e98358..7d0eec5eb6d 100644
--- a/homeassistant/components/logbook/processor.py
+++ b/homeassistant/components/logbook/processor.py
@@ -204,7 +204,7 @@ def _humanify(
 
     # Process rows
     for row in rows:
-        context_id = context_lookup.memorize(row)
+        context_id_bin = context_lookup.memorize(row)
         if row.context_only:
             continue
         event_type = row.event_type
@@ -232,7 +232,7 @@ def _humanify(
             if icon := row.icon or row.old_format_icon:
                 data[LOGBOOK_ENTRY_ICON] = icon
 
-            context_augmenter.augment(data, row, context_id)
+            context_augmenter.augment(data, row, context_id_bin)
             yield data
 
         elif event_type in external_events:
@@ -240,7 +240,7 @@ def _humanify(
             data = describe_event(event_cache.get(row))
             data[LOGBOOK_ENTRY_WHEN] = format_time(row)
             data[LOGBOOK_ENTRY_DOMAIN] = domain
-            context_augmenter.augment(data, row, context_id)
+            context_augmenter.augment(data, row, context_id_bin)
             yield data
 
         elif event_type == EVENT_LOGBOOK_ENTRY:
@@ -259,7 +259,7 @@ def _humanify(
                 LOGBOOK_ENTRY_DOMAIN: entry_domain,
                 LOGBOOK_ENTRY_ENTITY_ID: entry_entity_id,
             }
-            context_augmenter.augment(data, row, context_id)
+            context_augmenter.augment(data, row, context_id_bin)
             yield data
 
 
@@ -302,11 +302,11 @@ class ContextAugmenter:
         self.include_entity_name = logbook_run.include_entity_name
 
     def _get_context_row(
-        self, context_id: bytes | None, row: Row | EventAsRow
+        self, context_id_bin: bytes | None, row: Row | EventAsRow
     ) -> Row | EventAsRow | None:
         """Get the context row from the id or row context."""
-        if context_id:
-            return self.context_lookup.get(context_id)
+        if context_id_bin:
+            return self.context_lookup.get(context_id_bin)
         if (context := getattr(row, "context", None)) is not None and (
             origin_event := context.origin_event
         ) is not None:
@@ -314,13 +314,13 @@ class ContextAugmenter:
         return None
 
     def augment(
-        self, data: dict[str, Any], row: Row | EventAsRow, context_id: bytes | None
+        self, data: dict[str, Any], row: Row | EventAsRow, context_id_bin: bytes | None
     ) -> None:
         """Augment data from the row and cache."""
         if context_user_id_bin := row.context_user_id_bin:
             data[CONTEXT_USER_ID] = bytes_to_uuid_hex_or_none(context_user_id_bin)
 
-        if not (context_row := self._get_context_row(context_id, row)):
+        if not (context_row := self._get_context_row(context_id_bin, row)):
             return
 
         if _rows_match(row, context_row):