diff --git a/supervisor/api/addons.py b/supervisor/api/addons.py
index 643fe1fc7..6a4afb5b1 100644
--- a/supervisor/api/addons.py
+++ b/supervisor/api/addons.py
@@ -52,7 +52,6 @@ from ..const import (
     ATTR_INGRESS_PANEL,
     ATTR_INGRESS_PORT,
     ATTR_INGRESS_URL,
-    ATTR_INSTALLED,
     ATTR_IP_ADDRESS,
     ATTR_KERNEL_MODULES,
     ATTR_LOGO,
@@ -158,7 +157,6 @@ class APIAddons(CoreSysAttributes):
                 ATTR_VERSION: addon.version,
                 ATTR_VERSION_LATEST: addon.latest_version,
                 ATTR_UPDATE_AVAILABLE: addon.need_update,
-                ATTR_INSTALLED: addon.is_installed,
                 ATTR_AVAILABLE: addon.available,
                 ATTR_DETACHED: addon.is_detached,
                 ATTR_HOMEASSISTANT: addon.homeassistant_version,