diff --git a/ADVANCED.md b/ADVANCED.md
index b9201c9..318f5a6 100644
--- a/ADVANCED.md
+++ b/ADVANCED.md
@@ -170,7 +170,7 @@ The `./gravity-sync.sh config` function will attempt to ping the remote host to
 Default setting in Gravity Sync is 0, change to 1 to skip this network test.
 
 #### `BACKUP_RETAIN=''`
-The `./gravity-sync.sh backup` function will retain a defined number of previous `gravity.db` and `custom.list` backups.
+The `./gravity-sync.sh backup` function will retain a defined number of days worth of `gravity.db` and `custom.list` backups.
 
 Default setting in Gravity Sync is 7, adjust as resired.
 
diff --git a/gravity-sync.sh b/gravity-sync.sh
index 3980f7b..ebfa19b 100755
--- a/gravity-sync.sh
+++ b/gravity-sync.sh
@@ -1627,6 +1627,12 @@ function task_backup {
 
 	cp ${PIHOLE_DIR}/${CUSTOM_DNS} $HOME/${LOCAL_FOLDR}/${BACKUP_FOLD}/${BACKUPTIMESTAMP}-${CUSTOM_DNS}.backup
 		error_validate
+
+	MESSAGE="Cleaning Up Old Backups"
+	echo_stat
+
+	find $HOME/${LOCAL_FOLDR}/${BACKUP_FOLD}/$(date +%Y)*.backup -mtime +${BACKUP_RETAIN} -type f -delete 
+		error_validate
 	
 	exit_withchange
 }