diff --git a/common/buildcraft/transport/BlockGenericPipe.java b/common/buildcraft/transport/BlockGenericPipe.java
index 7085fdc6..25f61d12 100644
--- a/common/buildcraft/transport/BlockGenericPipe.java
+++ b/common/buildcraft/transport/BlockGenericPipe.java
@@ -783,6 +783,9 @@ public class BlockGenericPipe extends BlockBuildCraft {
 						DockingStation station = pipe.container.getStation(rayTraceResult.sideHit);
 
 						if (!station.isTaken()) {
+							if (((ItemRobot) currentItem.getItem()).getRobotNBT(currentItem) == null) {
+								return true;
+							}
 							EntityRobot robot = ((ItemRobot) currentItem.getItem())
 									.createRobot(currentItem, world);
 							robot.setUniqueRobotId(robot.getRegistry().getNextRobotId());