diff --git a/curriculum/challenges/english/08-coding-interview-prep/rosetta-code/fibonacci-sequence.english.md b/curriculum/challenges/english/08-coding-interview-prep/rosetta-code/fibonacci-sequence.english.md
index d9f0932976..21978596cb 100644
--- a/curriculum/challenges/english/08-coding-interview-prep/rosetta-code/fibonacci-sequence.english.md
+++ b/curriculum/challenges/english/08-coding-interview-prep/rosetta-code/fibonacci-sequence.english.md
@@ -28,12 +28,12 @@ tests:
     testString: assert(typeof fibonacci === 'function');
   - text: <code>fibonacci(2)</code> should return a number.
     testString: assert(typeof fibonacci(2) == 'number');
-  - text: <code>fibonacci(3)</code> should return 1.
-    testString: assert.equal(fibonacci(3),1);
-  - text: <code>fibonacci(5)</code> should return 3.
-    testString: assert.equal(fibonacci(5),3);
-  - text: <code>fibonacci(10)</code> should return 34.
-    testString: assert.equal(fibonacci(10),34);
+  - text: <code>fibonacci(3)</code> should return 2.
+    testString: assert.equal(fibonacci(3),2);
+  - text: <code>fibonacci(5)</code> should return 5.
+    testString: assert.equal(fibonacci(5),5);
+  - text: <code>fibonacci(10)</code> should return 55.
+    testString: assert.equal(fibonacci(10),55);
 
 ```
 
@@ -63,7 +63,7 @@ function fibonacci(n) {
 ```js
 function fibonacci(n) {
   let a = 0, b = 1, t;
-  while (--n > 0) {
+  while (--n >= 0) {
     t = a;
     a = b;
     b += t;