diff --git a/Movecraft/types/MediumMerchant.craft b/Movecraft/types/MediumMerchant.craft
index 4ba3f9b..d9e3054 100755
--- a/Movecraft/types/MediumMerchant.craft
+++ b/Movecraft/types/MediumMerchant.craft
@@ -94,6 +94,7 @@ allowedBlocks:
 
 forbiddenBlocks:
     - 7
+    - 34 #Piston Head
 
 canCruise: true
 cruiseSkipBlocks: 4