diff --git a/certbot-renew.sh b/certbot-renew.sh
index 710665d..7ee154e 100644
--- a/certbot-renew.sh
+++ b/certbot-renew.sh
@@ -1,3 +1,5 @@
 #!/bin/bash
 
-certbot renew
+if [ "${USE_LETSENCRYPT,,}" == "yes" -o "${USE_LETSENCRYPT,,}" == "true" ]; then
+  certbot renew
+fi