diff --git a/homeassistant/components/backup/manager.py b/homeassistant/components/backup/manager.py
index eee9919e711..15fc4a7f648 100644
--- a/homeassistant/components/backup/manager.py
+++ b/homeassistant/components/backup/manager.py
@@ -108,7 +108,7 @@ class BackupManager:
                             size=round(backup_path.stat().st_size / 1_048_576, 2),
                         )
                         backups[backup.slug] = backup
-            except (OSError, TarError, json.JSONDecodeError) as err:
+            except (OSError, TarError, json.JSONDecodeError, KeyError) as err:
                 LOGGER.warning("Unable to read backup %s: %s", backup_path, err)
         return backups