diff --git a/code/templates/flip b/code/templates/flip
index 93207f3..f91001c 100755
--- a/code/templates/flip
+++ b/code/templates/flip
@@ -85,6 +85,7 @@ _write() {
     _write_stdin "$NAME"
   } || {
     [[ -d "$FILE" ]] && {
+      [[ "${NAME,,}" = *".tar" ]] || NAME="${NAME}".tar
       _write_folder "$NAME" "$FILE"
     } || {
       _write_file "$NAME" "$FILE"
diff --git a/test/stop-server.sh b/test/stop-server.sh
new file mode 100755
index 0000000..1d51e39
--- /dev/null
+++ b/test/stop-server.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+cd ..
+docker-compose down