diff --git a/vault/Dockerfile b/vault/Dockerfile
index f6b88e5..57fa225 100644
--- a/vault/Dockerfile
+++ b/vault/Dockerfile
@@ -23,4 +23,4 @@ VOLUME /var/lib/vault
 
 EXPOSE 8200
 
-CMD ["vault", "server", "-config", "/etc/vault/vault.hcl"]
+CMD ["vault", "server", "-config=/etc/vault/vault.hcl"]
diff --git a/vault/README.md b/vault/README.md
index e568fce..5a8a677 100644
--- a/vault/README.md
+++ b/vault/README.md
@@ -29,7 +29,7 @@ vault:
   restart: always
 ```
 
-> You can also mount customized `vault.hcl`.
+> Please distribute `vault.crt` to clients.
 
 ## server
 
diff --git a/vault/vault/vault.crt b/vault/vault/vault.crt
new file mode 100644
index 0000000..e69de29
diff --git a/vault/vault/vault.key b/vault/vault/vault.key
new file mode 100644
index 0000000..e69de29