diff --git a/src/main/java/com/simibubi/create/foundation/item/ItemDescription.java b/src/main/java/com/simibubi/create/foundation/item/ItemDescription.java
index 8a5f3f8e5..50d963889 100644
--- a/src/main/java/com/simibubi/create/foundation/item/ItemDescription.java
+++ b/src/main/java/com/simibubi/create/foundation/item/ItemDescription.java
@@ -129,8 +129,9 @@ public class ItemDescription {
 				.addTo(list);
 
 			double capacity = BlockStressValues.getCapacity(block);
-			Couple<Integer> generatedRPM = BlockStressValues.getProvider(block)
-				.getGeneratedRPM(block);
+			Couple<Integer> generatedRPM = BlockStressValues.getProvider(block) != null ?
+                BlockStressValues.getProvider(block).getGeneratedRPM(block)
+                : null;
 
 			StressImpact impactId = capacity >= config.highCapacity.get() ? StressImpact.HIGH
 				: (capacity >= config.mediumCapacity.get() ? StressImpact.MEDIUM : StressImpact.LOW);