diff --git a/src/day12/day12.go b/src/day12/day12.go
index aa44097..979d8a1 100644
--- a/src/day12/day12.go
+++ b/src/day12/day12.go
@@ -8,16 +8,6 @@ import (
 	"unicode"
 )
 
-type pathTracking struct {
-	route                 []string
-	visitedSmallCaveTwice bool
-}
-
-type stepTracking struct {
-	destiny               string
-	visitedSmallCaveTwice bool
-}
-
 func main() {
 	args := os.Args[1:]
 	input, err := helper.GetInput(args[0])
@@ -31,7 +21,9 @@ func main() {
 		if splitLine[0] != "start" && splitLine[1] != "end" {
 			routeMap[splitLine[1]] = append(routeMap[splitLine[1]], splitLine[0])
 		}
-		routeMap[splitLine[0]] = append(routeMap[splitLine[0]], splitLine[1])
+		if splitLine[1] != "start" && splitLine[0] != "end" {
+			routeMap[splitLine[0]] = append(routeMap[splitLine[0]], splitLine[1])
+		}
 	}
 	for key, val := range routeMap {
 		fmt.Printf("%s : %s \n", key, val)