diff --git a/apps/docs/docs/editor/blocks/set-variable.md b/apps/docs/docs/editor/blocks/set-variable.md
index 4e4a301f6..9264262c9 100644
--- a/apps/docs/docs/editor/blocks/set-variable.md
+++ b/apps/docs/docs/editor/blocks/set-variable.md
@@ -6,6 +6,8 @@ The "Set variable" block allows you to set a particular value to a variable.
 
 This value can be any kind of plain text but also **Javascript code**.
 
+## Expressions with existing variables
+
 It means you can apply operations on existing variables:
 
 ```
@@ -16,14 +18,36 @@ It means you can apply operations on existing variables:
 {{Score}} * {{Multiplier}}
 ```
 
+## Current Date
+
 But also set the variable to the current date for example:
 
-```
+```js
 new Date()
 ```
 
+## Random ID
+
 Or a random ID:
 
-```
+```js
 Math.round(Math.random() * 1000000)
 ```
+
+## Current URL
+
+A popular request also is to set a variable to the current URL. Here is the value that should be inserted:
+
+```js
+window.location.href
+```
+
+It will not give you the parent URL if you embed the bot on your site. A more bullet proof value would then be:
+
+```js
+window.location != window.parent.location
+  ? document.referrer
+  : document.location.href
+```
+
+It checks whether or not the bot is embedded and return the appropriate URL.
diff --git a/apps/docs/static/img/blocks/set-variable.png b/apps/docs/static/img/blocks/set-variable.png
index fc16939e0..4f81c3f45 100644
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