diff --git a/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/autocrafting/task/CraftingTask.java b/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/autocrafting/task/CraftingTask.java
index f8b5c8ea3..f295c1689 100755
--- a/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/autocrafting/task/CraftingTask.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/apiimpl/autocrafting/task/CraftingTask.java
@@ -367,7 +367,9 @@ public class CraftingTask implements ICraftingTask {
             for (ICraftingStep step : mainSteps) {
                 quantity += quantityPerRequest - step.getReceivedOutput(requested);
             }
-            calculate();
+            if (quantity > 0) {
+                calculate();
+            }
             network.sendCraftingMonitorUpdate();
         }
     }