diff --git a/lib/mod_list.dart b/lib/mod_list.dart
index bc6c225..980517f 100644
--- a/lib/mod_list.dart
+++ b/lib/mod_list.dart
@@ -196,6 +196,18 @@ class ModList {
     }
   }
 
+  void enableMods(List<String> modIds) {
+    for (final modId in modIds) {
+      setEnabled(modId, true);
+    }
+  }
+
+  void disableMods(List<String> modIds) {
+    for (final modId in modIds) {
+      setEnabled(modId, false);
+    }
+  }
+
   List<List<String>> checkIncompatibilities() {
     List<List<String>> conflicts = [];
     List<String> activeModIds = activeMods.keys.toList();
@@ -512,8 +524,8 @@ class ModList {
       configPath: configPath ?? this.configPath,
       modsPath: modsPath ?? this.modsPath,
     );
-    newModlist.mods = mods ?? this.mods;
-    newModlist.activeMods = activeMods ?? this.activeMods;
+    newModlist.mods = Map.from(mods ?? this.mods);
+    newModlist.activeMods = Map.from(activeMods ?? this.activeMods);
     return newModlist;
   }
 }