diff --git a/core/src/mindustry/world/blocks/storage/CoreBlock.java b/core/src/mindustry/world/blocks/storage/CoreBlock.java
index fce5726ea0..a9aeeb163b 100644
--- a/core/src/mindustry/world/blocks/storage/CoreBlock.java
+++ b/core/src/mindustry/world/blocks/storage/CoreBlock.java
@@ -157,7 +157,7 @@ public class CoreBlock extends StorageBlock{
 
 
         public boolean isContainer(Tilec tile){
-            return tile instanceof StorageBlockEntity;
+            return tile instanceof StorageBlockEntity && (((StorageBlockEntity)tile).linkedCore == this || ((StorageBlockEntity)tile).linkedCore == null);
         }
 
         @Override