diff --git a/src/ldaptool/_main.py b/src/ldaptool/_main.py
index b5c6dad..38fabb0 100644
--- a/src/ldaptool/_main.py
+++ b/src/ldaptool/_main.py
@@ -14,7 +14,7 @@ from ldaptool._utils import argclasses
 from ldaptool._utils.ldap import Result, SizeLimitExceeded
 
 
-class TableOutput(enum.StrEnum):
+class TableOutput(enum.Enum):
     MARKDOWN = "markdown"
     CSV = "csv"
     HTML = "html"