diff --git a/install.sh b/install.sh
index 846d7e4..64e1cc8 100755
--- a/install.sh
+++ b/install.sh
@@ -69,10 +69,10 @@ function choose_default {
 		# non-interactive, default to first item
 		interactive=false
 		storage_disk="${storages[0]}"
-		echo "----------------------------------------------------"
+		echo '----------------------------------------------------'
 		echo "first TYPE=ZFSPOOL found: $storage_disk"
-		echo "to change, please launch one more time: `install.sh`"
-		echo "----------------------------------------------------"
+		echo 'to change, please launch one more time: `install.sh`'
+		echo '----------------------------------------------------'
 	else
 		# interactive, ask for default
 		interactive=true