diff --git a/data/mods/aftershock_exoplanet/game_balance.json b/data/mods/aftershock_exoplanet/game_balance.json
index f36efb1980153..5e8f109bcfe17 100644
--- a/data/mods/aftershock_exoplanet/game_balance.json
+++ b/data/mods/aftershock_exoplanet/game_balance.json
@@ -1,4 +1,11 @@
 [
+  {
+    "type": "effect_on_condition",
+    "id": "EOC_PORTAL_STORM_WARN_OR_CAUSE_RECURRING",
+    "recurrence": [ "10 days", "11 days" ],
+    "global": true,
+    "effect": [  ]
+  },
   {
     "type": "EXTERNAL_OPTION",
     "name": "GENERIC_PROFESSION_ID",