diff --git a/install.sh b/install.sh
index 6006a24..276d91e 100755
--- a/install.sh
+++ b/install.sh
@@ -19,8 +19,8 @@ OS=`lowercase \`uname\``
 if [ -f /etc/os-release ]; then
     # freedesktop.org and systemd
     . /etc/os-release
-    OS=`lowercase` $ID_LIKE
-    ID=`lowercase` $ID
+    OS=$ID_LIKE
+    ID=$ID
     VER=$VERSION_ID
 elif type lsb_release >/dev/null 2>&1; then
     # linuxbase.org