diff --git a/src/build/FunctionCall.go b/src/build/FunctionCall.go
index 387fe43..1857a82 100644
--- a/src/build/FunctionCall.go
+++ b/src/build/FunctionCall.go
@@ -10,8 +10,8 @@ func (f *Function) CompileFunctionCall(expr *expression.Expression) error {
 	funcName := expr.Children[0].Token.Text()
 	parameters := expr.Children[1:]
 
-	for i, parameter := range parameters {
-		err := f.ExpressionToRegister(parameter, f.CPU.Syscall[i])
+	for i := len(parameters) - 1; i >= 0; i-- {
+		err := f.ExpressionToRegister(parameters[i], f.CPU.Syscall[i])
 
 		if err != nil {
 			return err