diff --git a/README.org b/README.org
index d2cc9da..70568ef 100644
--- a/README.org
+++ b/README.org
@@ -23,6 +23,9 @@ It is also available on [[https://melpa.org/#/eldoc-box][MELPA]]
 ** Face
 -  =eldoc-box-border= :: Adjust =:background= of this face for border color.
 - =eldoc-box-body= :: Default face used by childframe.  I suggest to use a nice Sans Serif font such as Source Sans Pro, and a lighter or darker background.
+** Hooks
+- =eldoc-box-buffer-hook= :: Hook run after buffer for doc is setup.Run inside the new buffer.
+- =eldoc-box-frame-hook= :: Hook run after doc frame is setup but just before it is made visible.Each function runs inside the child frame and receives the main frame as argument.
 ** Variable
 - =eldoc-box-max-pixel-width= & =eldoc-box-max-pixel-height= :: Set them according to the screen resolution of your machine.
 - =eldoc-box-only-multi-line= :: Set this to non-nil and eldoc-box only display multi-line message in childframe. One line messages are left in minibuffer.
diff --git a/eldoc-box.el b/eldoc-box.el
index cb934b0..387adaf 100644
--- a/eldoc-box.el
+++ b/eldoc-box.el
@@ -116,6 +116,14 @@ It will be passes with two arguments: WIDTH and HEIGHT of the childframe.")
 (defvar eldoc-box-fringe-use-same-bg t
   "T means fringe's background color is set to as same as that of default.")
 
+(defvar eldoc-box-buffer-hook nil
+  "Hook run after buffer for doc is setup.
+Run inside the new buffer.")
+
+(defvar eldoc-box-frame-hook nil
+  "Hook run after doc frame is setup but just before it is made visible.
+Each function runs inside the new frame and receives the main frame as argument.")
+
 ;;;;; Function
 (defvar eldoc-box--frame nil ;; A backstage variable
   "The frame to display doc.")
@@ -186,7 +194,8 @@ You can use C-g to hide the doc."
         (setq eldoc-box-hover-mode t)
         (erase-buffer)
         (insert str)
-        (goto-char (point-min)))
+        (goto-char (point-min))
+        (run-hook-with-args 'eldoc-box-buffer-hook))
       (eldoc-box--get-frame doc-buffer))))
 
 
@@ -307,6 +316,7 @@ Checkout `lsp-ui-doc--make-frame', `lsp-ui-doc--move-frame'."
     ;; set size
     (eldoc-box--update-childframe-geometry frame window)
     (setq eldoc-box--frame frame)
+    (run-hook-with-args 'eldoc-box-frame-hook main-frame)
     (make-frame-visible frame)))