diff --git a/gotime/src/exercise-fibonacci-closure.go b/gotime/src/exercise-fibonacci-closure.go
index 2ab954b..010b159 100644
--- a/gotime/src/exercise-fibonacci-closure.go
+++ b/gotime/src/exercise-fibonacci-closure.go
@@ -16,8 +16,10 @@ func fibonacci() func() int {
 }
 
 func main() {
-    f := fibonacci()
+    f1 := fibonacci()
+    f2 := fibonacci()
     for i := 0; i < 10; i++ {
-        fmt.Println(f())
+        fmt.Println("f1 ->", f1())
+        fmt.Println("f2 ->", f2())
     }
 }