diff --git a/sshrm b/sshrm
index bd9ee56..3b57779 100755
--- a/sshrm
+++ b/sshrm
@@ -4,10 +4,10 @@ declare -r FILENAME="${HOME}/.ssh/known_hosts"
 declare HOST=""
 
 if [ ! "${1}" == "" ]; then
-  case ${1} in
-    *[!0-9]*) HOST=$(sed -n -e "${1}"p "${FILENAME}" | awk '{print $1}') ;;
-    *) HOST=${1} ;;
-  esac
+	case ${1} in
+		*[!0-9]*) HOST=$(sed -n -e "${1}"p "${FILENAME}" | awk '{print $1}') ;;
+		*) HOST=${1} ;;
+	esac
 	ssh-keygen -R "${HOST}"
 else
 	echo "Error: No IP or line number provided !"