diff --git a/src/algorithms/math/fibonacci/fibonacci.js b/src/algorithms/math/fibonacci/fibonacci.js
index 3230dfdd..4caa1d9b 100644
--- a/src/algorithms/math/fibonacci/fibonacci.js
+++ b/src/algorithms/math/fibonacci/fibonacci.js
@@ -18,7 +18,7 @@ export default function fibonacci(n) {
 
   while (iterationsCounter) {
     currentValue += previousValue;
-    previousValue = (currentValue - previousValue);
+    previousValue = currentValue - previousValue;
 
     fibSequence.push(currentValue);
 
diff --git a/src/algorithms/math/fibonacci/fibonacciNth.js b/src/algorithms/math/fibonacci/fibonacciNth.js
index 76bbbe87..72922447 100644
--- a/src/algorithms/math/fibonacci/fibonacciNth.js
+++ b/src/algorithms/math/fibonacci/fibonacciNth.js
@@ -16,7 +16,7 @@ export default function fibonacciNth(n) {
 
   while (iterationsCounter) {
     currentValue += previousValue;
-    previousValue = (currentValue - previousValue);
+    previousValue = currentValue - previousValue;
 
     iterationsCounter -= 1;
   }