diff --git a/docs/doc.md b/docs/doc.md
index fc7be9a..64ac0be 100644
--- a/docs/doc.md
+++ b/docs/doc.md
@@ -86,7 +86,7 @@
 
 ####Arguments:
 
-    key - See keys.
+    key - See [keys](https://github.com/go-vgo/robotgo/blob/master/docs/keys.md).
     modifier (optional, string or array) - Accepts alt, command (win), control, and shift.
 
 ####Examples:
@@ -104,7 +104,7 @@
 
 ####Arguments:
 
-    key - See keys.
+    key - See [keys](https://github.com/go-vgo/robotgo/blob/master/docs/keys.md).
     down - Accepts 'down' or 'up'.
     modifier (optional, string or array) - Accepts alt, command (mac), control, and shift.
 
diff --git a/docs/doc_zh.md b/docs/doc_zh.md
index eca117a..3ff7344 100644
--- a/docs/doc_zh.md
+++ b/docs/doc_zh.md
@@ -92,7 +92,7 @@
     键盘值
     修饰值(可选类型, 字符串或者数组) - 可选值: alt, command (win), control, and shift.
 
-    key - See keys.
+    key - See [keys](https://github.com/go-vgo/robotgo/blob/master/docs/keys.md).
     modifier (optional, string or array) - Accepts alt, command (win), control, and shift.
 ####示例:
 
@@ -110,7 +110,7 @@
 
 ####参数:
 
-    key - See keys.
+    key - See [keys](https://github.com/go-vgo/robotgo/blob/master/docs/keys.md).
     down - Accepts 'down' or 'up'.
     modifier (optional, string or array) - Accepts alt, command (mac), control, and shift.
 ###返回值: