diff --git a/mealie/db/models/theme.py b/mealie/db/models/theme.py
index 79a361867..702376a25 100644
--- a/mealie/db/models/theme.py
+++ b/mealie/db/models/theme.py
@@ -1,3 +1,5 @@
+from enum import unique
+
 import sqlalchemy as sa
 import sqlalchemy.orm as orm
 from mealie.db.models.model_base import BaseMixins, SqlAlchemyBase
@@ -7,7 +9,7 @@ from sqlalchemy.sql.sqltypes import Integer
 class SiteThemeModel(SqlAlchemyBase, BaseMixins):
     __tablename__ = "site_theme"
     id = sa.Column(Integer, primary_key=True, unique=True)
-    name = sa.Column(sa.String, nullable=False)
+    name = sa.Column(sa.String, nullable=False, unique=True)
     colors = orm.relationship("ThemeColorsModel", uselist=False, cascade="all, delete")
 
     def __init__(self, name: str, colors: dict, *arg, **kwargs) -> None: