diff --git a/core/src/mindustry/content/ErekirTechTree.java b/core/src/mindustry/content/ErekirTechTree.java
index d52d788fd0..89f128ae72 100644
--- a/core/src/mindustry/content/ErekirTechTree.java
+++ b/core/src/mindustry/content/ErekirTechTree.java
@@ -386,7 +386,7 @@ public class ErekirTechTree{
                                                     node(siege, Seq.with(new SectorComplete(crevice)), () -> {
                                                         node(crossroads, Seq.with(new SectorComplete(siege)), () -> {
                                                             node(karst, Seq.with(new SectorComplete(crossroads), new Research(coreAcropolis)), () -> {
-                                                                node(origin, Seq.with(new SectorComplete(karst), new Research(coreAcropolis), new Research(UnitTypes.vanquish), new Research(UnitTypes.disrupt), new Research(UnitTypes.collaris), new Research(malign), new Research(basicAssemblerModule)), () -> {
+                                                                node(origin, Seq.with(new SectorComplete(karst), new Research(coreAcropolis), new Research(UnitTypes.vanquish), new Research(UnitTypes.disrupt), new Research(UnitTypes.collaris), new Research(malign), new Research(basicAssemblerModule), new Research(neoplasiaReactor)), () -> {
 
                                                                 });
                                                             });