diff --git a/README.md b/README.md
index 0becb17..c98f505 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ There is a default config:
 {
     mac_window_bar = true, -- MacOS style title bar switch
     opacity = true, -- The code snap has some opacity by default, set it to false for 100% opacity 
-    watermark = "CodeSnap.nvim" -- (Optional) you can custom your own watermark, but if you don't like it, just set it to nil
+    watermark = "CodeSnap.nvim" -- (Optional) you can custom your own watermark, but if you don't like it, just set it to ""
 }
 ```