diff --git a/core/src/mindustry/mod/ClassMap.java b/core/src/mindustry/mod/ClassMap.java
index c0ddbea7dd..3031e15ec7 100644
--- a/core/src/mindustry/mod/ClassMap.java
+++ b/core/src/mindustry/mod/ClassMap.java
@@ -40,6 +40,7 @@ public class ClassMap{
         classes.put("SpawnDeathAbility", mindustry.entities.abilities.SpawnDeathAbility.class);
         classes.put("StatusFieldAbility", mindustry.entities.abilities.StatusFieldAbility.class);
         classes.put("SuppressionFieldAbility", mindustry.entities.abilities.SuppressionFieldAbility.class);
+        classes.put("UnitShieldProvider", mindustry.entities.abilities.UnitShieldProvider.class);
         classes.put("UnitSpawnAbility", mindustry.entities.abilities.UnitSpawnAbility.class);
         classes.put("ArtilleryBulletType", mindustry.entities.bullet.ArtilleryBulletType.class);
         classes.put("BasicBulletType", mindustry.entities.bullet.BasicBulletType.class);