diff --git a/lib/models/mods/factionUpgrades/cef.dart b/lib/models/mods/factionUpgrades/cef.dart
index a0fb5d55..af7c75ca 100644
--- a/lib/models/mods/factionUpgrades/cef.dart
+++ b/lib/models/mods/factionUpgrades/cef.dart
@@ -219,11 +219,11 @@ class CEFMods extends FactionModification {
     fm.addMod<List<Trait>>(
       UnitAttribute.traits,
       (value) {
-        final newValue = Trait.ECMPlus();
+        final newValue = Trait.ECM();
         var newList = new List<Trait>.from(value);
 
-        if (!newList
-            .any((t) => t.isSameType(newValue) || t.isSameType(Trait.ECM()))) {
+        if (!newList.any(
+            (t) => t.isSameType(newValue) || t.isSameType(Trait.ECMPlus()))) {
           newList.add(newValue);
         }
 
@@ -234,7 +234,7 @@ class CEFMods extends FactionModification {
 
     fm.addMod<List<Trait>>(
       UnitAttribute.traits,
-      createAddTraitToList(Trait.Sensors(36)),
+      createAddOrReplaceSameTraitInList(Trait.Sensors(36)),
       description: '+Sensors:36',
     );
 
diff --git a/lib/models/mods/mods.dart b/lib/models/mods/mods.dart
index 6dc3aa04..82ce409c 100644
--- a/lib/models/mods/mods.dart
+++ b/lib/models/mods/mods.dart
@@ -84,6 +84,28 @@ List<Trait> Function(List<Trait>) createAddTraitToList(Trait newValue) {
   };
 }
 
+List<Trait> Function(List<Trait>) createAddOrReplaceSameTraitInList(
+    Trait newTrait) {
+  return (value) {
+    var newList = new List<Trait>.from(value);
+
+    final index = newList.indexWhere((trait) => trait.isSameType(newTrait));
+    if (index >= 0) {
+      newList.removeAt(index);
+    }
+
+    if (!newList.any((element) => element.name == newTrait.name)) {
+      if (index >= 0) {
+        newList.insert(index, newTrait);
+      } else {
+        newList.add(newTrait);
+      }
+    }
+
+    return newList;
+  };
+}
+
 /// Add the trait to the list if it does not already exist in the list.  Otherwise
 /// combine the trait with the existing trait in the list by summing the levels.
 List<Trait> Function(List<Trait>) createAddOrCombineTraitToList(
diff --git a/pubspec.yaml b/pubspec.yaml
index bf2417f0..d1e2c4f4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -16,7 +16,7 @@ publish_to: "none" # Remove this line if you wish to publish to pub.dev
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 
-version: 1.13.0
+version: 1.13.1
 environment:
   sdk: ">=3.0.0"