diff --git a/CHANGELOG b/CHANGELOG
index 37dadb577d..096f22d627 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Remove implicit field names in ModelStorage.search_read
+
 Version 5.4.0 - 2019-11-04
 * Bug fixes (see mercurial logs for details)
 * Improve tests on depends
diff --git a/trytond/ir/action.py b/trytond/ir/action.py
index a6d6ec3275..698af45967 100644
--- a/trytond/ir/action.py
+++ b/trytond/ir/action.py
@@ -276,6 +276,9 @@ class ActionMixin(ModelSQL):
                 if getattr(Action, default_func, None):
                     setattr(cls, default_func,
                         partial(ActionMixin._default_action, name))
+        cls.__rpc__.update({
+                'fetch_action': RPC(cache=dict(days=1)),
+                })
 
     @staticmethod
     def _default_action(name):
@@ -406,6 +409,11 @@ class ActionMixin(ModelSQL):
         groups = {g.id for a in actions for g in a.groups}
         return groups
 
+    @classmethod
+    def fetch_action(cls, action_id):
+        fields = list(cls._fields.keys())
+        return cls.search_read([('action', '=', action_id)], fields, limit=1)
+
 
 class ActionReport(ActionMixin, ModelSQL, ModelView):
     "Action report"
diff --git a/trytond/model/modelstorage.py b/trytond/model/modelstorage.py
index 744104ee2b..713e1872e7 100644
--- a/trytond/model/modelstorage.py
+++ b/trytond/model/modelstorage.py
@@ -508,8 +508,8 @@ class ModelStorage(Model):
         '''
         records = cls.search(domain, offset=offset, limit=limit, order=order)
 
-        if not fields_names:
-            fields_names = list(cls._fields.keys())
+        if fields_names is None:
+            fields_names = ['id']
         if 'id' not in fields_names:
             fields_names.append('id')
         rows = cls.read(list(map(int, records)), fields_names)
diff --git a/trytond/tests/test_modelstorage.py b/trytond/tests/test_modelstorage.py
index 6e686b3b5b..13fbe6b46b 100644
--- a/trytond/tests/test_modelstorage.py
+++ b/trytond/tests/test_modelstorage.py
@@ -29,11 +29,13 @@ class ModelStorageTestCase(unittest.TestCase):
         self.assertTrue(
             all(x['id'] < y['id'] for x, y in zip(rows, rows[1:])))
 
-        rows = ModelStorage.search_read([], order=[('name', 'ASC')])
+        rows = ModelStorage.search_read(
+            [], order=[('name', 'ASC')], fields_names=['name'])
         self.assertTrue(
             all(x['name'] <= y['name'] for x, y in zip(rows, rows[1:])))
 
-        rows = ModelStorage.search_read([], order=[('name', 'DESC')])
+        rows = ModelStorage.search_read(
+            [], order=[('name', 'DESC')], fields_names=['name'])
         self.assertTrue(
             all(x['name'] >= y['name'] for x, y in zip(rows, rows[1:])))