diff --git a/ch02/case_ip_address_check.sh b/ch02/case_ip_address_check.sh
index ea7568c..d5241e7 100644
--- a/ch02/case_ip_address_check.sh
+++ b/ch02/case_ip_address_check.sh
@@ -1,5 +1,4 @@
 #!/bin/bash
-
 IP_ADDRESS="${1}"
 
 # Check if the argument is in a specific private network