diff --git a/temba/channels/types/firebase/tests.py b/temba/channels/types/firebase/tests.py
index badce95441..d62c22bc51 100644
--- a/temba/channels/types/firebase/tests.py
+++ b/temba/channels/types/firebase/tests.py
@@ -20,7 +20,7 @@ def setUp(self):
             address="87654",
             role="SR",
             schemes=["fcm"],
-            config={"FCM_TITLE": "Title", "FCM_AUTH_JSON": {"foo": "bar", "project_id": "87654"}},
+            config={"FCM_TITLE": "Title", "FCM_CREDENTIALS_JSON": {"foo": "bar", "project_id": "87654"}},
         )
 
     @patch("requests.get")
@@ -50,7 +50,7 @@ def test_claim(self, mock_get):
         self.assertEqual(
             channel.config,
             {
-                "FCM_AUTH_JSON": {"foo": "bar", "baz": "abc", "project_id": "abcde12345"},
+                "FCM_CREDENTIALS_JSON": {"foo": "bar", "baz": "abc", "project_id": "abcde12345"},
                 "FCM_TITLE": "FCM Channel",
                 "FCM_NOTIFICATION": True,
             },
diff --git a/temba/channels/types/firebase/views.py b/temba/channels/types/firebase/views.py
index e16e443487..b9f48eedd5 100644
--- a/temba/channels/types/firebase/views.py
+++ b/temba/channels/types/firebase/views.py
@@ -1,21 +1,14 @@
-import json
-
 from smartmin.views import SmartFormView
 
 from django import forms
 from django.utils.translation import gettext_lazy as _
 
-from temba.utils.fields import InputWidget
+from temba.utils.fields import InputWidget, PrettyJSONEncoder
 
 from ...models import Channel
 from ...views import ClaimViewMixin
 
 
-class PrettyJSONEncoder(json.JSONEncoder):
-    def __init__(self, *args, indent, sort_keys, **kwargs):
-        super().__init__(*args, indent=4, sort_keys=False, **kwargs)
-
-
 class ClaimView(ClaimViewMixin, SmartFormView):
     class Form(ClaimViewMixin.Form):
         title = forms.CharField(label=_("Notification Title"))
@@ -43,7 +36,7 @@ def form_valid(self, form):
         title = form.cleaned_data.get("title")
         authentication_json = form.cleaned_data.get("authentication_json")
         address = form.cleaned_data.get("address")
-        config = {"FCM_TITLE": title, "FCM_AUTH_JSON": authentication_json}
+        config = {"FCM_TITLE": title, "FCM_CREDENTIALS_JSON": authentication_json}
 
         if form.cleaned_data.get("send_notification") == "True":
             config["FCM_NOTIFICATION"] = True
diff --git a/temba/utils/fields.py b/temba/utils/fields.py
index ba76e621d0..a4c960c38a 100644
--- a/temba/utils/fields.py
+++ b/temba/utils/fields.py
@@ -387,3 +387,8 @@ def prepare_value(self, value):
 
     def valid_value(self, value):
         return True
+
+
+class PrettyJSONEncoder(json.JSONEncoder):  # pragma: needs cover
+    def __init__(self, *args, indent, sort_keys, **kwargs):
+        super().__init__(*args, indent=4, sort_keys=False, **kwargs)