diff --git a/bc.lua b/bc.lua
index 82909d6e928e..83d47302bccb 100644
--- a/bc.lua
+++ b/bc.lua
@@ -33,7 +33,7 @@ local Query = {
 
 -- Network ---------------------------------------------------------------- {{{
 local Network = {
-  default_port = bit32.bor(0xBC00, (Version[1] << 4), Version[2]),
+  default_port = bit32.bor(0xBC00, bit32.lshift(Version[1], 4), Version[2]),
 }
 
 function Network:new(modem, port)