diff --git a/TwoSum.java b/TwoSum.java
index 81009de..a8114a7 100644
--- a/TwoSum.java
+++ b/TwoSum.java
@@ -27,9 +27,9 @@ public int[] twoSum(int[] numbers, int target) {
         for (int i = 0; i < numbers.length; ++i) {
             int b = target - numbers[i];
             if (map.get(b) != null) {
-                return new int[]{map.get(b),i+1};
-            } else map.put(numbers[i],i+1);
+                return new int[]{map.get(b),i};
+            } else map.put(numbers[i],i);
         }
         return null;
     }
-}
\ No newline at end of file
+}