diff --git a/examples/src/Bottles.jetl b/examples/src/Bottles.jetl
index 8ae5408d13b..a0293624b5b 100644
--- a/examples/src/Bottles.jetl
+++ b/examples/src/Bottles.jetl
@@ -3,25 +3,21 @@ namespace bottles;
 fun main(args: Array<String>) {
     var bottles: Int = 99;
     while(bottles > 0) {
-        System.out?.print(bottlesOfBeer(bottles))
-        System.out?.print(" on the wall, ")
-        System.out?.print(bottlesOfBeer(bottles))
-        System.out?.println(".")
+        System.out?.print(bottlesOfBeer(bottles) + " on the wall, ")
+        System.out?.println(bottlesOfBeer(bottles) + ".")
         System.out?.print("Take one down, pass it around, ")
-        bottles -= 1;
-        if (bottles == 0) {
-          System.out?.print("no more bottles of beer on the wall.")
+        if (--bottles == 0) {
+          System.out?.println("no more bottles of beer on the wall.")
         }
         else {
-          System.out?.print(bottlesOfBeer(bottles))
-          System.out?.println(" on the wall.")
+          System.out?.println(bottlesOfBeer(bottles) + " on the wall.")
         }
     }
 }
 
-fun bottlesOfBeer(count: Int): String? {
-  val result = new StringBuilder()
-  result.append(count)
-  result.append(if (count > 1) " bottles of beer" else " bottle of beer")
-  return result.toString()
+fun bottlesOfBeer(count: Int): String {
+    val result = new StringBuilder()
+    result.append(count)
+    result.append(if (count > 1) " bottles of beer" else " bottle of beer")
+    return result.toString() ?: ""
 }