diff --git a/data/mods/Xedra_Evolved/effects/effects.json b/data/mods/Xedra_Evolved/effects/effects.json
index 929c45272f602..06a693e55a8b1 100644
--- a/data/mods/Xedra_Evolved/effects/effects.json
+++ b/data/mods/Xedra_Evolved/effects/effects.json
@@ -470,6 +470,15 @@
             }
           }
         ]
+      },
+      {
+        "condition": { "not": "is_day" },
+        "values": [
+          {
+            "value": "OVERMAP_SIGHT",
+            "add": { "math": [ "4 + u_has_trait('VAMPIRE2') + u_has_trait('VAMPIRE3') + (u_has_trait('VAMPIRE4') * 2)" ] }
+          }
+        ]
       }
     ]
   },
diff --git a/data/mods/Xedra_Evolved/mutations/mutations.json b/data/mods/Xedra_Evolved/mutations/mutations.json
index 2a6ebb9644d6b..81ddbed1dd216 100644
--- a/data/mods/Xedra_Evolved/mutations/mutations.json
+++ b/data/mods/Xedra_Evolved/mutations/mutations.json
@@ -393,7 +393,10 @@
     "vitamins_absorb_multi": [ [ "all", [ [ "human_blood_vitamin", 1.25 ] ] ] ],
     "vitamin_rates": [ [ "human_blood_vitamin", 180 ] ],
     "flags": [ "CANNIBAL", "ALBINO", "DAYFEAR", "HEMOVORE" ],
-    "enchantments": [ { "values": [ { "value": "STAMINA_REGEN_MOD", "add": 0.1 }, { "value": "METABOLISM", "multiply": 0.8 } ] } ]
+    "enchantments": [
+      { "condition": { "not": "is_day" }, "values": [ { "value": "OVERMAP_SIGHT", "add": 1 } ] },
+      { "values": [ { "value": "STAMINA_REGEN_MOD", "add": 0.1 }, { "value": "METABOLISM", "multiply": 0.8 } ] }
+    ]
   },
   {
     "type": "mutation",