diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index 2823038..a81a5de 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -2,13 +2,13 @@ export function fibonacci(value) {
   // implementar logica aqui
   if (value < 1) return 0
   if (value <= 2) return 1
-  let fibMinus2 = 0
-  let fibMinus1 = 1
-  let fibN = value
+  let fibAnterior = 0
+  let fibProximo = 1
+  let fibValue = value
   for(let i = 2; i <= value; i++){
-    fibN = fibMinus1 + fibMinus2
-    fibMinus2 = fibMinus1
-    fibMinus1 = fibN
+    fibValue = fibProximo + fibAnterior
+    fibAnterior = fibProximo
+    fibProximo = fibValue
   }
-  return fibN
+  return fibValue
 }
\ No newline at end of file