diff --git a/frigate/http.py b/frigate/http.py
index 00ffb6840..a6eb516ba 100644
--- a/frigate/http.py
+++ b/frigate/http.py
@@ -187,7 +187,7 @@ def delete_sub_label(id):
             jsonify({"success": False, "message": "Event " + id + " not found"}), 404
         )
 
-    event.sub_label = ""
+    event.sub_label = None
     event.save()
     return make_response(
         jsonify({"success": True, "message": "Event " + id + " sub label removed"}), 200
diff --git a/frigate/models.py b/frigate/models.py
index 9eacdcca1..9dbd87205 100644
--- a/frigate/models.py
+++ b/frigate/models.py
@@ -6,7 +6,7 @@ from playhouse.sqlite_ext import *
 class Event(Model):
     id = CharField(null=False, primary_key=True, max_length=30)
     label = CharField(index=True, max_length=20)
-    sub_label = CharField(index=True, max_length=12, default="")
+    sub_label = CharField(index=True, max_length=12, default=None),
     camera = CharField(index=True, max_length=20)
     start_time = DateTimeField()
     end_time = DateTimeField()
diff --git a/migrations/008_add_sub_label.py b/migrations/008_add_sub_label.py
index 1bc82465c..eae88af31 100644
--- a/migrations/008_add_sub_label.py
+++ b/migrations/008_add_sub_label.py
@@ -38,7 +38,7 @@ SQL = pw.SQL
 def migrate(migrator, database, fake=False, **kwargs):
     migrator.add_fields(
         Event,
-        sub_label=pw.CharField(default=""),
+        sub_label=pw.CharField(default=None),
     )
 
 
diff --git a/web/src/routes/Events.jsx b/web/src/routes/Events.jsx
index d390f82e6..94a96debb 100644
--- a/web/src/routes/Events.jsx
+++ b/web/src/routes/Events.jsx
@@ -315,7 +315,7 @@ export default function Events({ path, ...props }) {
                     <div className="m-2 flex grow">
                       <div className="flex flex-col grow">
                         <div className="capitalize text-lg font-bold">
-                          {event.sub_label != "" ? `${event.label}: ${event.sub_label}` : event.label} ({(event.top_score * 100).toFixed(0)}%)
+                          {event.sub_label ? `${event.label}: ${event.sub_label}` : event.label} ({(event.top_score * 100).toFixed(0)}%)
                         </div>
                         <div className="text-sm">
                           {new Date(event.start_time * 1000).toLocaleDateString()}{' '}