diff --git a/content/self-host/install/_index.en.md b/content/self-host/install/_index.en.md
index 61bb113e..34ae3ae4 100644
--- a/content/self-host/install/_index.en.md
+++ b/content/self-host/install/_index.en.md
@@ -3,6 +3,10 @@ title: Installation
 weight: 10
 ---
 
+{{% notice note %}}
+Self-hosted server software is not free, you can use demo license for trial.
+{{% /notice %}}
+
 ## Set up your own cloud by following simple steps
 -----------
 
diff --git a/content/self-host/install/_index.zh-cn.md b/content/self-host/install/_index.zh-cn.md
index d7e5f2d2..93fa6291 100644
--- a/content/self-host/install/_index.zh-cn.md
+++ b/content/self-host/install/_index.zh-cn.md
@@ -3,6 +3,10 @@ title: 安装
 weight: 10
 ---
 
+{{% notice note %}}
+自建服务器软件不是免费的，您可以使用演示许可证进行试用。
+{{% /notice %}}
+
 ## 如何自建中继
 -----------
 
diff --git a/content/self-host/install/_index.zh-tw.md b/content/self-host/install/_index.zh-tw.md
index 7e2eb8a6..34141199 100644
--- a/content/self-host/install/_index.zh-tw.md
+++ b/content/self-host/install/_index.zh-tw.md
@@ -3,6 +3,10 @@ title: 安裝
 weight: 10
 ---
 
+{{% notice note %}}
+自託管服務器軟件不是免費的，您可以使用演示許可證進行試用。
+{{% /notice %}}
+
 ## 如何自建中繼
 -----------