diff --git a/Movecraft/types/Submarine.craft b/Movecraft/types/Submarine.craft
index 9c642be..2bf375a 100755
--- a/Movecraft/types/Submarine.craft
+++ b/Movecraft/types/Submarine.craft
@@ -12,7 +12,6 @@ allowedBlocks:
     - 26
     - 29
     - 33
-    - 34
     - 35
     - 41
     - 42
@@ -95,6 +94,7 @@ allowedBlocks:
 
 forbiddenBlocks:
     - 7
+    - 34 #Piston Head
 
 canCruise: true
 cruiseSkipBlocks: 4
@@ -120,4 +120,4 @@ flyblocks:
         - 1.0
     42:
         - 15.0
-        - 100.0
\ No newline at end of file
+        - 100.0