diff --git a/API.md b/API.md
index e6720bd71..62222d8bd 100644
--- a/API.md
+++ b/API.md
@@ -417,7 +417,7 @@ Get all available addons.
 }
 ```
 
-For reset custom network/audio settings, set it `null`.
+Reset custom network/audio/options, set it `null`.
 
 - POST `/addons/{addon}/start`
 
diff --git a/hassio/addons/addon.py b/hassio/addons/addon.py
index 7944de1b6..c66a5e4c3 100644
--- a/hassio/addons/addon.py
+++ b/hassio/addons/addon.py
@@ -120,7 +120,10 @@ class Addon(CoreSysAttributes):
     @options.setter
     def options(self, value):
         """Store user addon options."""
-        self._data.user[self._id][ATTR_OPTIONS] = deepcopy(value)
+        if value is None:
+            self._data.user[self._id][ATTR_OPTIONS] = {}
+        else:
+            self._data.user[self._id][ATTR_OPTIONS] = deepcopy(value)
         self._data.save()
 
     @property
diff --git a/hassio/api/addons.py b/hassio/api/addons.py
index 8f593f79f..ddbfd8894 100644
--- a/hassio/api/addons.py
+++ b/hassio/api/addons.py
@@ -140,7 +140,7 @@ class APIAddons(CoreSysAttributes):
         addon = self._extract_addon(request)
 
         addon_schema = SCHEMA_OPTIONS.extend({
-            vol.Optional(ATTR_OPTIONS): addon.schema,
+            vol.Optional(ATTR_OPTIONS): vol.Any(None, addon.schema),
         })
 
         body = await api_validate(addon_schema, request)