diff --git a/pybtc/blockchain.py b/pybtc/blockchain.py
index 3a746c8..89aee37 100644
--- a/pybtc/blockchain.py
+++ b/pybtc/blockchain.py
@@ -618,6 +618,7 @@ class Block():
 
     def calculate_commitment(self, witness = None):
         wtxid_list = [b"\x00" * 32,]
+        print(len(self.transactions))
         if not (len(self.transactions) == 1 and self.transactions[0].coinbase):
             for tx in self.transactions[0 if not self.transactions[0].coinbase else 1:]:
                 wtxid_list.append(tx.whash)