diff --git a/05_sumAll/sumAll.js b/05_sumAll/sumAll.js
index e733b01..16f3de7 100644
--- a/05_sumAll/sumAll.js
+++ b/05_sumAll/sumAll.js
@@ -1,6 +1,7 @@
 const sumAll = function(a, b) {
-    let sum = 0;
-    for (let i = a; i <= b; i++) {
+    let c, sum = 0;
+    for ((a > b) ? (i = b, c = a)
+                 : (i = a, c = b); i <= c; i++) {
         sum += i;
     }
     return sum;
diff --git a/05_sumAll/sumAll.spec.js b/05_sumAll/sumAll.spec.js
index e2f1c95..6c53087 100644
--- a/05_sumAll/sumAll.spec.js
+++ b/05_sumAll/sumAll.spec.js
@@ -7,7 +7,7 @@ describe('sumAll', () => {
   test('works with large numbers', () => {
     expect(sumAll(1, 4000)).toEqual(8002000);
   });
-  test.skip('works with larger number first', () => {
+  test('works with larger number first', () => {
     expect(sumAll(123, 1)).toEqual(7626);
   });
   test.skip('returns ERROR with negative numbers', () => {