diff --git a/install.sh b/install.sh
index 73a9e5f..04e0cf7 100755
--- a/install.sh
+++ b/install.sh
@@ -45,8 +45,9 @@ case "$1" in
 esac
 
 _fetch_sources;
-if [[ $UPDATE_LITE ]]; then
-  _update_nanorc_lite;
+if [ $UPDATE_LITE ];
+then
+  _update_nanorc_lite
 else
-  _update_nanorc;
+  _update_nanorc
 fi