diff --git a/lib/ansible/plugins/inventory/foreman.py b/lib/ansible/plugins/inventory/foreman.py
index 874187186ec..996f7d88359 100644
--- a/lib/ansible/plugins/inventory/foreman.py
+++ b/lib/ansible/plugins/inventory/foreman.py
@@ -175,7 +175,7 @@ class InventoryModule(BaseInventoryPlugin, Cacheable):
         url = "%s/api/v2/hosts/%s" % (self.foreman_url, hid)
         ret = self._get_json(url, [404])
         if not ret or not isinstance(ret, MutableMapping) or not ret.get('all_parameters', False):
-            ret = []
+            return {}
         return ret.get('all_parameters')
 
     def _get_facts_by_id(self, hid):