diff --git a/README.md b/README.md
index 147c756..00e883a 100644
--- a/README.md
+++ b/README.md
@@ -191,11 +191,11 @@ Your Organization will be mapped to `DB_USER` and your root token will need to b
 If `BACKUP_LOCATION` = `S3` then the following options are used.
 
 | Parameter             | Description                                                                               | Default |
-| --------------------- | ----------------------------------------------------------------------------------------- | ------- |
+|-----------------------|-------------------------------------------------------------------------------------------|---------|
 | `S3_BUCKET`           | S3 Bucket name e.g. `mybucket`                                                            |         |
 | `S3_KEY_ID`           | S3 Key ID                                                                                 |         |
 | `S3_KEY_SECRET`       | S3 Key Secret                                                                             |         |
-| `S3_PATH`             | S3 Pathname to save to e.g. '`backup`'                                                    |         |
+| `S3_PATH`             | S3 Pathname to save to (must end in a trailing slash e.g. '`backup/`')                    |         |
 | `S3_REGION`           | Define region in which bucket is defined. Example: `ap-northeast-2`                       |         |
 | `S3_HOST`             | Hostname (and port) of S3-compatible service, e.g. `minio:8080`. Defaults to AWS.         |         |
 | `S3_PROTOCOL`         | Protocol to connect to `S3_HOST`. Either `http` or `https`. Defaults to `https`.          | `https` |
diff --git a/install/assets/functions/10-db-backup b/install/assets/functions/10-db-backup
index 8de2d0b..1702cf1 100755
--- a/install/assets/functions/10-db-backup
+++ b/install/assets/functions/10-db-backup
@@ -469,7 +469,7 @@ cleanup_old_data() {
                             s3_filename=$(echo $s3_file | awk {'print $4'})
                             if [ "$s3_filename" != "" ] ; then
                                 print_debug "Deleting $s3_filename"
-                                silent aws ${PARAM_AWS_ENDPOINT_URL} s3 rm s3://${S3_BUCKET}/${S3_PATH}/${s3_filename} ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS}
+                                silent aws ${PARAM_AWS_ENDPOINT_URL} s3 rm s3://${S3_BUCKET}/${S3_PATH}${s3_filename} ${s3_ssl} ${s3_ca_cert} ${S3_EXTRA_OPTS}
                             fi
                         fi