diff --git a/10_fibonacci/fibonacci.js b/10_fibonacci/fibonacci.js
index f03a1e8..d65a3e4 100644
--- a/10_fibonacci/fibonacci.js
+++ b/10_fibonacci/fibonacci.js
@@ -4,8 +4,11 @@ const fibonacci = function(n) {
     //n4 = n3+n2
     //n3 = n2+n1
     //n2 = n1
+    if(n<0){
+        return "OOPS";
+    }
     if(n<=1){
-        return n;
+            return Number(n);
     }
     return fibonacci(n-1)+fibonacci(n-2);
     };
diff --git a/10_fibonacci/fibonacci.spec.js b/10_fibonacci/fibonacci.spec.js
index 0f9f66a..32f38ee 100644
--- a/10_fibonacci/fibonacci.spec.js
+++ b/10_fibonacci/fibonacci.spec.js
@@ -13,19 +13,19 @@ describe('fibonacci', () => {
   test('15th fibonacci number is 610', () => {
     expect(fibonacci(15)).toBe(610);
   });
-  test.skip('25th fibonacci number is 75025', () => {
+  test('25th fibonacci number is 75025', () => {
     expect(fibonacci(25)).toBe(75025);
   });
-  test.skip('doesn\'t accept negatives', () => {
+  test('doesn\'t accept negatives', () => {
     expect(fibonacci(-25)).toBe("OOPS");
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("1")).toBe(1);
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("2")).toBe(1);
   });
-  test.skip('DOES accept strings', () => {
+  test('DOES accept strings', () => {
     expect(fibonacci("8")).toBe(21);
   });
 });