diff --git a/nselib/bitcoin.lua b/nselib/bitcoin.lua
index f495cd621..5ef40ccf8 100644
--- a/nselib/bitcoin.lua
+++ b/nselib/bitcoin.lua
@@ -299,10 +299,10 @@ Response = {
 
       local function decode_bitcoin_version(n)
         if ( n < 31300 ) then
-          local minor, micro = n / 100, n % 100
+          local minor, micro = n // 100, n % 100
           return ("0.%d.%d"):format(minor, micro)
         else
-          local minor, micro = n / 10000, (n / 100) % 100
+          local minor, micro = n // 10000, (n // 100) % 100
           return ("0.%d.%d"):format(minor, micro)
         end
       end
diff --git a/scripts/bitcoinrpc-info.nse b/scripts/bitcoinrpc-info.nse
index 4bc9544df..325c86344 100644
--- a/scripts/bitcoinrpc-info.nse
+++ b/scripts/bitcoinrpc-info.nse
@@ -114,10 +114,10 @@ end
 -- Version 0.3.13 release announcement: https://bitcointalk.org/?topic=1327.0
 local function decode_bitcoin_version(n)
   if n < 31300 then
-    local minor, micro = n / 100, n % 100
+    local minor, micro = n // 100, n % 100
     return string.format("0.%d.%d", minor, micro)
   else
-    local minor, micro = n / 10000, (n / 100) % 100
+    local minor, micro = n // 10000, (n // 100) % 100
     return string.format("0.%d.%d", minor, micro)
   end
 end