diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/blackhole/BlackHoleBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/blackhole/BlackHoleBlockEntity.kt
index 4c95bd092..cb2989694 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/blackhole/BlackHoleBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/blackhole/BlackHoleBlockEntity.kt
@@ -35,6 +35,7 @@ import ru.dbotthepony.mc.otm.registry.MRegistry
 import ru.dbotthepony.mc.otm.core.getSphericalBlockPositions
 import ru.dbotthepony.mc.otm.core.mapIf
 import ru.dbotthepony.mc.otm.core.set
+import java.util.LinkedList
 import kotlin.math.pow
 import kotlin.math.roundToInt
 import kotlin.math.sqrt
@@ -97,20 +98,22 @@ class BlackHoleBlockEntity(p_155229_: BlockPos, p_155230_: BlockState) : Synchro
 		sleepTicks = 4
 	}
 
-	private val stabilizers = ArrayList<GravitationStabilizerBlockEntity>()
-	private var stabilizerClientCount = 0
+	private val stabilizers = LinkedList<GravitationStabilizerBlockEntity>()
+	private var stabilizerClientCount by synchronizer.int()
 
 	fun stabilizerAttached(stabilizer: GravitationStabilizerBlockEntity) {
-		if (stabilizers.contains(stabilizer))
+		if (stabilizer in stabilizers)
 			return
 
 		stabilizers.add(stabilizer)
 		mass = mass
+		stabilizerClientCount = stabilizers.size
 	}
 
 	fun stabilizerDetached(stabilizer: GravitationStabilizerBlockEntity) {
 		if (stabilizers.remove(stabilizer)) {
 			mass = mass
+			stabilizerClientCount = stabilizers.size
 		}
 	}