diff --git a/module/applications/sheets-configs/activeEffectConfig.mjs b/module/applications/sheets-configs/activeEffectConfig.mjs
index 01fc447a..2967c5f1 100644
--- a/module/applications/sheets-configs/activeEffectConfig.mjs
+++ b/module/applications/sheets-configs/activeEffectConfig.mjs
@@ -232,11 +232,11 @@ export default class DhActiveEffectConfig extends foundry.applications.sheets.Ac
         const rangeFields = this.document.system.schema.fields.rangeDependence.fields;
         const systemData = {
             rangeDependence: event.target.checked
-                ? { 
+                ? _replace({ 
                     type: rangeFields.type.initial, 
                     target: rangeFields.target.initial,
                     range: rangeFields.range.initial 
-                }
+                })
                 : null
         };
         return this.submit({ updateData: { system: systemData } });
diff --git a/module/data/activeEffect/baseEffect.mjs b/module/data/activeEffect/baseEffect.mjs
index 2bdff755..547bdcf7 100644
--- a/module/data/activeEffect/baseEffect.mjs
+++ b/module/data/activeEffect/baseEffect.mjs
@@ -141,7 +141,9 @@ export default class BaseEffect extends foundry.data.ActiveEffectTypeDataModel {
             description: '',
             transfer: options.transfer,
             statuses: [],
-            changes: []
+            system: {
+                changes: []
+            }
         };
     }