diff --git a/tests/components/hassio/test_diagnostics.py b/tests/components/hassio/test_diagnostics.py
index c95cde67b8a..97f6a41ce18 100644
--- a/tests/components/hassio/test_diagnostics.py
+++ b/tests/components/hassio/test_diagnostics.py
@@ -109,6 +109,38 @@ def mock_all(
             },
         },
     )
+    aioclient_mock.get(
+        "http://127.0.0.1/addons",
+        json={
+            "result": "ok",
+            "data": {
+                "addons": [
+                    {
+                        "name": "test",
+                        "slug": "test",
+                        "state": "started",
+                        "update_available": True,
+                        "icon": False,
+                        "version": "2.0.0",
+                        "version_latest": "2.0.1",
+                        "repository": "core",
+                        "url": "https://github.com/home-assistant/addons/test",
+                    },
+                    {
+                        "name": "test2",
+                        "slug": "test2",
+                        "state": "stopped",
+                        "update_available": False,
+                        "icon": True,
+                        "version": "3.1.0",
+                        "version_latest": "3.1.0",
+                        "repository": "core",
+                        "url": "https://github.com",
+                    },
+                ],
+            },
+        },
+    )
     aioclient_mock.get(
         "http://127.0.0.1/core/stats",
         json={
@@ -177,10 +209,10 @@ async def test_diagnostics(
         hass, hass_client, config_entry
     )
 
-    assert "addons" in diagnostics["coordinator_data"]
     assert "core" in diagnostics["coordinator_data"]
     assert "supervisor" in diagnostics["coordinator_data"]
     assert "os" in diagnostics["coordinator_data"]
     assert "host" in diagnostics["coordinator_data"]
+    assert "addons" in diagnostics["addons_coordinator_data"]
 
     assert len(diagnostics["devices"]) == 6