diff --git a/data/json/scenarios.json b/data/json/scenarios.json
index 3030e4f3302fc..4fceade66b32c 100644
--- a/data/json/scenarios.json
+++ b/data/json/scenarios.json
@@ -698,6 +698,7 @@
       "CHITIN",
       "ELECTRORECEPTORS"
     ],
+    "reveal_locale": false,
     "flags": [ "LONE_START" ]
   },
   {
diff --git a/data/mods/extra_mut_scen/mutation_scenarios.json b/data/mods/extra_mut_scen/mutation_scenarios.json
index 3fc2acdcc58d7..2d37a9ca99d05 100644
--- a/data/mods/extra_mut_scen/mutation_scenarios.json
+++ b/data/mods/extra_mut_scen/mutation_scenarios.json
@@ -261,7 +261,8 @@
       "WINGS_STUB",
       "XS",
       "XXXL"
-    ]
+    ],
+    "reveal_locale": false
   },
   {
     "type": "scenario",