diff --git a/config/expcore/permission_groups.lua b/config/expcore/permission_groups.lua
index 236268b4..6a78e026 100644
--- a/config/expcore/permission_groups.lua
+++ b/config/expcore/permission_groups.lua
@@ -93,7 +93,9 @@ Permission_Groups.new_group('Guest')
     'use_artillery_remote',
     'launch_rocket',
     'cancel_research',
-    'activate_cut'
+    'activate_cut',
+    'flush_opened_entity_fluid',
+    'flush_opened_entity_specific_fluid'
 }
 
 Permission_Groups.new_group('Restricted')