diff --git a/subjects/printmiddle/README.md b/subjects/printmiddle/README.md
index 709b9f37..d0a42a02 100644
--- a/subjects/printmiddle/README.md
+++ b/subjects/printmiddle/README.md
@@ -19,6 +19,6 @@ $ go run . "Hello World!" "World!" "All" | cat -e
 World!$
 $ go run . 1 2 3 4 | cat -e
 2 3$
-go run . "Hello" "World!" | cat -e 
+$ go run . "Hello" "World!" | cat -e 
 Hello World!$
 ```