diff --git a/src/tui/light.go b/src/tui/light.go
index cfccc4b..6fcb4d5 100644
--- a/src/tui/light.go
+++ b/src/tui/light.go
@@ -20,6 +20,7 @@ const (
 	defaultWidth  = 80
 	defaultHeight = 24
 
+	defaultEscDelay = 100
 	escPollInterval = 5
 	offsetPollTries = 10
 )
@@ -164,15 +165,7 @@ func atoi(s string, defaultValue int) int {
 }
 
 func (r *LightRenderer) Init() {
-	delay := 100
-	delayEnv := os.Getenv("ESCDELAY")
-	if len(delayEnv) > 0 {
-		num, err := strconv.Atoi(delayEnv)
-		if err == nil && num >= 0 {
-			delay = num
-		}
-	}
-	r.escDelay = delay
+	r.escDelay = atoi(os.Getenv("ESCDELAY"), defaultEscDelay)
 
 	fd := r.fd()
 	origState, err := terminal.GetState(fd)