diff --git a/src/data-type.coffee b/src/data-type.coffee
index 629b63b3c..7c24d1f44 100644
--- a/src/data-type.coffee
+++ b/src/data-type.coffee
@@ -177,12 +177,10 @@ TYPE =
       buffer.writeUInt8(8)
 
       # ParamLenData
-      if parameter.value?
+      if parameter.value
         buffer.writeUInt8(8)
-        buffer.writeUInt32LE(parseInt(parameter.value) % 0x100000000)
-        buffer.writeUInt32LE(Math.floor(parseInt(parameter.value) / 0x100000000))
-        # might need to sign the high value not sure
-        # buffer.writeInt32LE(Math.floor(parseInt(parameter.value) / 0x100000000))
+        buffer.writeInt32LE(parseInt(parameter.value) % 0x100000000)
+        buffer.writeInt32LE(Math.floor(parseInt(parameter.value) / 0x100000000))
       else
         buffer.writeUInt8(0)
 		
diff --git a/test/integration/parameterised-statements-test.coffee b/test/integration/parameterised-statements-test.coffee
index 744db5ed1..de3fa711d 100644
--- a/test/integration/parameterised-statements-test.coffee
+++ b/test/integration/parameterised-statements-test.coffee
@@ -50,7 +50,7 @@ exports.bigint = (test) ->
   execSql(test, TYPES.BigInt, 18014402804449279)
   
 exports.bigintsmall = (test) ->
-  execSql(test, TYPES.BigInt, 8)
+  execSql(test, TYPES.BigInt, -8)
   
 exports.float = (test) ->
   execSql(test, TYPES.Float, 9654.2546456567565767644)