diff --git a/unit2/exercises/e1/main.go b/unit2/exercises/e1/main.go
index 748b320..a12a0ed 100644
--- a/unit2/exercises/e1/main.go
+++ b/unit2/exercises/e1/main.go
@@ -1,6 +1,8 @@
 package main
 
-import "golang.org/x/tour/tree"
+import (
+	"golang.org/x/tour/tree"
+)
 
 // Walk walks the tree t sending all values
 // from the tree to the channel ch.