diff --git a/helloworld.sh b/helloworld.sh
index e6b1da6..6ef582e 100644
--- a/helloworld.sh
+++ b/helloworld.sh
@@ -1,7 +1,7 @@
 #! /bin/bash
 
 func(){
-echo "hello world"
+echo "hello world."
 }
 
 func