diff --git a/systems/x86_64-linux/teal/default.nix b/systems/x86_64-linux/teal/default.nix
index 7448b92..f7627c5 100644
--- a/systems/x86_64-linux/teal/default.nix
+++ b/systems/x86_64-linux/teal/default.nix
@@ -55,16 +55,35 @@
             "pineafan"
           ];
           groups."group:areas" = [
+            # Some phonetic alphabet names are excluded here to avoid confusing
+            # them with given names
             "alpha"
             "bravo"
-            "charlie"
+            "delta"
+            "echo"
+            "foxtrot"
+            "golf"
+            "hotel"
+            "india"
+            "kilo"
+            "lima"
+            "november"
+            "papa"
+            "quebec"
+            "sierra"
+            "tango"
+            "uniform"
+            "whiskey"
+            "xray"
+            "yankee"
+            "zulu"
           ];
 
           acls = [
             {
               action = "accept";
               src = [ "group:users" ];
-              dst = [ "*:*" ];
+              dst = [ "group:users:*" "group:areas:*" ];
             }
             {
               action = "accept";