diff --git a/lib/transaction.py b/lib/transaction.py
index fc3ac627..39a45a37 100644
--- a/lib/transaction.py
+++ b/lib/transaction.py
@@ -591,6 +591,8 @@ class Transaction:
             return addr
         elif output_type == TYPE_ADDRESS:
             return bitcoin.address_to_script(addr)
+        elif output_type == TYPE_PUBKEY:
+            return addr
         else:
             raise TypeError('Unknown output type')
         return script