diff --git a/.gitignore b/.gitignore
index 3c55ec0d7..cdeeedd32 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,6 +28,7 @@ coverage
 !/.config/docker_ci.env
 !/.config/helm_values_example.yml
 !/.config/LICENSE
+.docker-compose.yml
 
 # docker dev config
 /dev/docker-compose.yml
diff --git a/docker-compose.yml b/docker-compose.example.yml
similarity index 100%
rename from docker-compose.yml
rename to docker-compose.example.yml
diff --git a/neko/messages/docker_compose_rename b/neko/messages/docker_compose_rename
new file mode 100644
index 000000000..8989dca12
--- /dev/null
+++ b/neko/messages/docker_compose_rename
@@ -0,0 +1,9 @@
+ ----------------------------------------------------------
+| For Docker users:                                        |
+| docker-compose.yml has now been renamed to               |
+| docker-compose.example.yml. So you need to restore it by |
+| $ cp docker-compose.example.yml docker-compose.yml       |
+|                                                          |
+| For the detailed explanation, see:                       |
+| https://post.naskya.net/notes/9mmcy2s9cmvpr9im           |
+ ----------------------------------------------------------