diff --git a/moulinette/interfaces/__init__.py b/moulinette/interfaces/__init__.py
index 2f6c7c23..0499f872 100644
--- a/moulinette/interfaces/__init__.py
+++ b/moulinette/interfaces/__init__.py
@@ -245,8 +245,11 @@ class BaseActionsMapParser(object):
             elif ifaces is False:
                 conf["authenticate"] = False
             elif isinstance(ifaces, list):
-                # Store only if authentication is needed
-                conf["authenticate"] = True if self.interface in ifaces else False
+                if "all" in ifaces:
+                    conf["authenticate"] = "all"
+                else:
+                    # Store only if authentication is needed
+                    conf["authenticate"] = True if self.interface in ifaces else False
             else:
                 logger.error(
                     "expecting 'all', 'False' or a list for "
diff --git a/test/test_actionsmap.py b/test/test_actionsmap.py
index b2601d15..a7d94cc8 100644
--- a/test/test_actionsmap.py
+++ b/test/test_actionsmap.py
@@ -221,7 +221,7 @@ def test_actions_map_api():
 
     amap = ActionsMap(ActionsMapParser, use_cache=False)
 
-    assert amap.parser.global_conf['authenticate'] == False
+    assert amap.parser.global_conf['authenticate'] == "all"
     assert 'default' in amap.parser.global_conf['authenticator']
     assert 'yoloswag' in amap.parser.global_conf['authenticator']
     assert ('GET', '/test-auth/default') in amap.parser.routes
@@ -231,7 +231,7 @@ def test_actions_map_api():
 
     amap = ActionsMap(ActionsMapParser, use_cache=True)
 
-    assert amap.parser.global_conf['authenticate'] == False
+    assert amap.parser.global_conf['authenticate'] == "all"
     assert 'default' in amap.parser.global_conf['authenticator']
     assert 'yoloswag' in amap.parser.global_conf['authenticator']
     assert ('GET', '/test-auth/default') in amap.parser.routes
@@ -266,7 +266,7 @@ def test_actions_map_cli():
                         )
     amap = ActionsMap(ActionsMapParser, use_cache=False, parser_kwargs={'top_parser': parser})
 
-    assert amap.parser.global_conf['authenticate'] == False
+    assert amap.parser.global_conf['authenticate'] == "all"
     assert 'default' in amap.parser.global_conf['authenticator']
     assert 'yoloswag' in amap.parser.global_conf['authenticator']
     assert 'testauth' in amap.parser._subparsers.choices
@@ -278,7 +278,7 @@ def test_actions_map_cli():
 
     amap = ActionsMap(ActionsMapParser, use_cache=True, parser_kwargs={'top_parser': parser})
 
-    assert amap.parser.global_conf['authenticate'] == False
+    assert amap.parser.global_conf['authenticate'] == "all"
     assert 'default' in amap.parser.global_conf['authenticator']
     assert 'yoloswag' in amap.parser.global_conf['authenticator']
     assert 'testauth' in amap.parser._subparsers.choices