diff --git a/create-archive b/create-archive
index 5228e4e..da3a0a8 100755
--- a/create-archive
+++ b/create-archive
@@ -2,7 +2,7 @@
 
 # Create a tarball from given directory.
 
-archive_name="$1.tar.gz"
-archive_name=${archive_name/\//}
-tar cvfz "$archive_name" "$1"
-echo "Created archive $archive_name"
+dir_name="$1"
+archive_name="${dir_name}-$(date '+%Y%m%d').tar.gz"
+tar cvfz "$archive_name" "$1" && \
+    echo "Created archive $archive_name"