diff --git a/ch8/ch8-07.md b/ch8/ch8-07.md
index b8a1798..dc9881f 100644
--- a/ch8/ch8-07.md
+++ b/ch8/ch8-07.md
@@ -9,7 +9,7 @@ func main() {
 	tick := time.Tick(1 * time.Second)
 	for countdown := 10; countdown > 0; countdown-- {
 		fmt.Println(countdown)
-		j<-tick
+		<-tick
 	}
 	launch()
 }