diff --git a/posthog/api/hog_function.py b/posthog/api/hog_function.py
index 338f7b8500a6c..b112919b5870c 100644
--- a/posthog/api/hog_function.py
+++ b/posthog/api/hog_function.py
@@ -32,6 +32,7 @@
     TYPES_WITH_COMPILED_FILTERS,
     TYPES_WITH_TRANSPILED_FILTERS,
     TYPES_WITH_JAVASCRIPT_SOURCE,
+    HogFunctionType,
 )
 from posthog.models.plugin import TranspilerError
 from posthog.plugins.plugin_server_api import create_hog_invocation_test
@@ -88,6 +89,8 @@ class HogFunctionSerializer(HogFunctionMinimalSerializer):
     template = HogFunctionTemplateSerializer(read_only=True)
     masking = HogFunctionMaskingSerializer(required=False, allow_null=True)
 
+    type = serializers.ChoiceField(choices=HogFunctionType.choices, required=False, allow_null=True)
+
     class Meta:
         model = HogFunction
         fields = [
diff --git a/posthog/api/test/test_hog_function.py b/posthog/api/test/test_hog_function.py
index 169b37e796765..bd68c2ce66506 100644
--- a/posthog/api/test/test_hog_function.py
+++ b/posthog/api/test/test_hog_function.py
@@ -409,6 +409,25 @@ def test_inputs_required(self, *args):
             "attr": "inputs__url",
         }
 
+    def test_validation_error_on_invalid_type(self, *args):
+        payload = {
+            "name": "Fetch URL",
+            "hog": "fetch(inputs.url);",
+            "inputs_schema": [
+                {"key": "url", "type": "string", "label": "Webhook URL", "required": True},
+            ],
+            "type": "invalid_type",
+        }
+        # Check required
+        res = self.client.post(f"/api/projects/{self.team.id}/hog_functions/", data={**payload})
+        assert res.status_code == status.HTTP_400_BAD_REQUEST, res.json()
+        assert res.json() == {
+            "type": "validation_error",
+            "code": "invalid_choice",
+            "detail": '"invalid_type" is not a valid choice.',
+            "attr": "type",
+        }
+
     def test_inputs_mismatch_type(self, *args):
         payload = {
             "name": "Fetch URL",
diff --git a/posthog/migrations/0535_alter_hogfunction_type.py b/posthog/migrations/0535_alter_hogfunction_type.py
index cb7ea3d65a237..e30a1c0c04771 100644
--- a/posthog/migrations/0535_alter_hogfunction_type.py
+++ b/posthog/migrations/0535_alter_hogfunction_type.py
@@ -1,4 +1,4 @@
-# Generated by Django 4.2.15 on 2024-12-19 11:01
+# Generated by Django 4.2.15 on 2024-12-19 14:58
 
 from django.db import migrations, models
 
@@ -12,23 +12,6 @@ class Migration(migrations.Migration):
         migrations.AlterField(
             model_name="hogfunction",
             name="type",
-            field=models.CharField(
-                blank=True,
-                choices=[
-                    ("destination", "Destination"),
-                    ("site_destination", "Site Destination"),
-                    ("internal_destination", "Internal Destination"),
-                    ("site_app", "Site App"),
-                    ("transformation", "Transformation"),
-                    ("email", "Email"),
-                    ("sms", "Sms"),
-                    ("push", "Push"),
-                    ("activity", "Activity"),
-                    ("alert", "Alert"),
-                    ("broadcast", "Broadcast"),
-                ],
-                max_length=24,
-                null=True,
-            ),
+            field=models.CharField(blank=True, max_length=24, null=True),
         ),
     ]
diff --git a/posthog/models/hog_functions/hog_function.py b/posthog/models/hog_functions/hog_function.py
index a85a961abb277..a715f10b86b7b 100644
--- a/posthog/models/hog_functions/hog_function.py
+++ b/posthog/models/hog_functions/hog_function.py
@@ -72,7 +72,7 @@ class Meta:
     deleted = models.BooleanField(default=False)
     updated_at = models.DateTimeField(auto_now=True)
     enabled = models.BooleanField(default=False)
-    type = models.CharField(max_length=24, choices=HogFunctionType.choices, null=True, blank=True)
+    type = models.CharField(max_length=24, null=True, blank=True)
 
     icon_url = models.TextField(null=True, blank=True)