diff --git a/core/src/mindustry/world/blocks/power/PowerGraph.java b/core/src/mindustry/world/blocks/power/PowerGraph.java
index 7c5a3f26c8..11710107eb 100644
--- a/core/src/mindustry/world/blocks/power/PowerGraph.java
+++ b/core/src/mindustry/world/blocks/power/PowerGraph.java
@@ -259,6 +259,13 @@ public class PowerGraph{
 
     public void addGraph(PowerGraph graph){
         if(graph == this) return;
+
+        //merge into other graph instead.
+        if(graph.all.size > all.size){
+            graph.addGraph(this);
+            return;
+        }
+
         //other entity should be removed as the graph was merged
         if(graph.entity != null) graph.entity.remove();