diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterReconstructorBlockEntity.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterReconstructorBlockEntity.kt
index a949198a2..7e48c0a1c 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterReconstructorBlockEntity.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/matter/MatterReconstructorBlockEntity.kt
@@ -230,6 +230,7 @@ class MatterReconstructorBlockEntity(blockPos: BlockPos, blockState: BlockState)
 				if (energyConsumption.isPositive) {
 					if (!energy.batteryLevel.isPositive) return
 					val multEnergy = energyConsumption * (progressPerTick / thisProgressPerTick)
+					if (!multEnergy.isPositive) return
 					progressPerTick *= (energy.extractEnergy(multEnergy, true) / multEnergy).toDouble()
 
 					if (progressPerTick <= 0.0) {