diff --git a/src/scripts/run_certbot.sh b/src/scripts/run_certbot.sh
index 066799b..346589d 100644
--- a/src/scripts/run_certbot.sh
+++ b/src/scripts/run_certbot.sh
@@ -16,10 +16,7 @@ for domain in $(parse_domains); do
     if is_renewal_required $domain; then
         # Renewal required for this doman.
         # Last one happened over a week ago (or never)
-        if get_certificate $domain $CERTBOT_EMAIL; then
-            # Renewal successful. Update timestamp...
-            update_renewal_timestamp $domain
-        else
+        if ! get_certificate $domain $CERTBOT_EMAIL; then
             error "Cerbot failed for $domain. Check the logs for details."
             exit_code=1
         fi
diff --git a/src/scripts/util.sh b/src/scripts/util.sh
index eb0243b..2c47c7d 100644
--- a/src/scripts/util.sh
+++ b/src/scripts/util.sh
@@ -80,8 +80,8 @@ get_certificate() {
 # ran over a week ago or never happened yet), otherwise return false.
 is_renewal_required() {
     # If the file does not exist assume a renewal is required
-    last_renewal_file="/etc/letsencrypt/$1_last_renewal.txt"
-    [[ ! -e "$last_renewal_file" ]] && return;
+    last_renewal_file="/etc/letsencrypt/live/$1/privkey.pem"
+    [ ! -e "$last_renewal_file" ] && return;
     
     # If the file exists, check if the last renewal was more than a week ago
     one_week_sec=604800
@@ -89,12 +89,5 @@ is_renewal_required() {
     last_renewal_sec=$(stat -c %Y "$last_renewal_file")
     last_renewal_delta_sec=$(( ($now_sec - $last_renewal_sec) ))
     is_finshed_week_sec=$(( ($one_week_sec - $last_renewal_delta_sec) ))
-    [[ $is_finshed_week_sec -lt 0 ]]
-}
-
-# Given a domain name, set the current time as the last renewal timestamp
-# as read by is_renewal_required().
-update_renewal_timestamp() {
-    last_renewal_file="/etc/letsencrypt/$1_last_renewal.txt"
-    touch "$last_renewal_file"
+    [ $is_finshed_week_sec -lt 0 ]
 }