diff --git a/medicine/backup_media.sh b/medicine/backup_media.sh
index 94cece3..c309f16 100755
--- a/medicine/backup_media.sh
+++ b/medicine/backup_media.sh
@@ -10,4 +10,4 @@ if test -f "${archive_filename}"; then
   rm "${archive_filename}"
 fi
 
-zip -r ${archive_filename}" /var/lib/docker/volumes/medicine_medicine-public-data/_data/media
+zip -r "${archive_filename}" /var/lib/docker/volumes/medicine_medicine-public-data/_data/media