diff --git a/core/src/mindustry/mod/ClassMap.java b/core/src/mindustry/mod/ClassMap.java
index 648a2d0ed0..1ecc165ea2 100644
--- a/core/src/mindustry/mod/ClassMap.java
+++ b/core/src/mindustry/mod/ClassMap.java
@@ -1,8 +1,6 @@
 package mindustry.mod;
 
 import arc.struct.*;
-import mindustry.world.blocks.distribution.OverflowDuct.*;
-
 /** Generated class. Maps simple class names to concrete classes. For use in JSON mods. */
 @SuppressWarnings("deprecation")
 public class ClassMap{
@@ -75,6 +73,7 @@ public class ClassMap{
         classes.put("PartParams", mindustry.entities.part.DrawPart.PartParams.class);
         classes.put("PartProgress", mindustry.entities.part.DrawPart.PartProgress.class);
         classes.put("FlarePart", mindustry.entities.part.FlarePart.class);
+        classes.put("HaloPart", mindustry.entities.part.HaloPart.class);
         classes.put("HoverPart", mindustry.entities.part.HoverPart.class);
         classes.put("RegionPart", mindustry.entities.part.RegionPart.class);
         classes.put("ShapePart", mindustry.entities.part.ShapePart.class);
@@ -228,7 +227,7 @@ public class ClassMap{
         classes.put("DriverState", mindustry.world.blocks.distribution.MassDriver.DriverState.class);
         classes.put("MassDriverBuild", mindustry.world.blocks.distribution.MassDriver.MassDriverBuild.class);
         classes.put("OverflowDuct", mindustry.world.blocks.distribution.OverflowDuct.class);
-        classes.put("DuctRouterBuild", OverflowDuctBuild.class);
+        classes.put("OverflowDuctBuild", mindustry.world.blocks.distribution.OverflowDuct.OverflowDuctBuild.class);
         classes.put("OverflowGate", mindustry.world.blocks.distribution.OverflowGate.class);
         classes.put("OverflowGateBuild", mindustry.world.blocks.distribution.OverflowGate.OverflowGateBuild.class);
         classes.put("Router", mindustry.world.blocks.distribution.Router.class);