diff --git a/apps/docs/editor/blocks/logic/set-variable.mdx b/apps/docs/editor/blocks/logic/set-variable.mdx
index 4b43ae60f..4faac7199 100644
--- a/apps/docs/editor/blocks/logic/set-variable.mdx
+++ b/apps/docs/editor/blocks/logic/set-variable.mdx
@@ -127,17 +127,24 @@ This value block allows you to find the `Id` from `Ids` with the same index as `
 For this you can provide the following custom code:
 
 ```js
-function getPosition() {
-  return new Promise((resolve, reject) => {
+function getLocation() {
+  return new Promise((resolve) => {
     navigator.geolocation.getCurrentPosition(
-      (position) => resolve(position),
-      (error) => reject(error),
+      position => resolve(`${position.coords.latitude}, ${position.coords.longitude}`),
+      error => resolve("error"),
       { enableHighAccuracy: true, timeout: 5000 }
-    )
-  })
+    );
+  });
 }
 
-const coords = (await getPosition()).coords
+const coords = await getLocation();
 
-return `${coords.latitude}, ${coords.longitude}`
+// Check for error
+if (coords === "error") {
+  return "Unable to get location";
+}
+
+return coords;
 ```
+
+This custom function can only work when it is executed on the client browser so you need to make sure to enable the "Execute on client" option.