diff --git a/2.4/root/usr/share/container-scripts/httpd/common.sh b/2.4/root/usr/share/container-scripts/httpd/common.sh
index 2f71ec81..e660fa5e 100644
--- a/2.4/root/usr/share/container-scripts/httpd/common.sh
+++ b/2.4/root/usr/share/container-scripts/httpd/common.sh
@@ -57,8 +57,8 @@ root@${fqdn}
 EOF
    fi
 
-   chmod 640 ${sslcert}
-   chmod 640 ${sslkey}
+   chmod 640 "${sslcert}"
+   chmod 640 "${sslkey}"
 }
 
 config_general() {