diff --git a/cmd/main.go b/cmd/main.go
index 630cd21..6631701 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -5,8 +5,10 @@ import (
 	"log"
 )
 
+const input = "input.txt"
+
 func main() {
-	application, err := zombie.Init("input.txt")
+	application, err := zombie.Init(input)
 	if err != nil {
 		log.Panicf("failed to init application: %v", err)
 	}