diff --git a/backup.sh b/backup.sh
index 109258d..991c371 100755
--- a/backup.sh
+++ b/backup.sh
@@ -6,6 +6,8 @@ restic_password_file="${RESTIC_PASSWORD_FILE:?RESTIC_PASSWORD_FILE not set}"
 
 restic_host="${RESTIC_HOST:?RESTIC_HOST not set}"
 
+backup_path="${BACKUP_DEST:?BACKUP_DEST not set}"
+
 ssh_key_file="${SSH_KEY_FILE}"
 s3_key_file="${AWS_SECRET_ACCESS_KEY_FILE}"
 
@@ -18,8 +20,9 @@ if [ -n "$ssh_key_file" ] && [ -f "$ssh_key_file" ]; then
 fi
 
 if [ -n "$s3_key_file" ] && [ -f "$s3_key_file" ]; then
-	export "$AWS_SECRET_ACCESS_KEY"="$(cat "${s3_key_file}")"
-	restic_repo="s3:$restic_host:/$server_name"
+	AWS_SECRET_ACCESS_KEY="$(cat "${s3_key_file}")"
+	export AWS_SECRET_ACCESS_KEY
+	restic_repo="s3:$restic_host$server_name"
 fi
 
 if [ -z "$restic_repo" ]; then
@@ -27,6 +30,8 @@ if [ -z "$restic_repo" ]; then
 	exit 1
 fi
 
+echo "restic_repo: $restic_repo"
+
 # Pre-bake-in some default restic options
 _restic() {
 	# shellcheck disable=SC2068
@@ -36,8 +41,6 @@ _restic() {
 		$@
 }
 
-backup_path="${BACKUP_DEST:?BACKUP_DEST not set}"
-
 if [ -n "$SERVICES_OVERRIDE" ]; then
 	# this is fine because docker service names should never include spaces or
 	# glob characters
@@ -82,7 +85,7 @@ for service in "${services[@]}"; do
 	fi
 done
 
-# Check if restic repo exists
+# check if restic repo exists, initialise if not
 if [ -z "$(_restic cat config)" ] 2>/dev/null; then
 	echo "initializing restic repo"
 	_restic init