diff --git a/org-clock-waybar.el b/org-clock-waybar.el
index cd8b9e4..c3d3986 100644
--- a/org-clock-waybar.el
+++ b/org-clock-waybar.el
@@ -59,10 +59,11 @@
   "Coding system of the file `org-clock-waybar-filename'.")
 
 (defun org-clock-waybar--get-clocked-task-json (buffer)
-  "Save the current clocked-in task’s title and category to BUFFER.
+  "Save the currently clocked-in task’s data to BUFFER.
 
-The output is in JSON format.  If there is no clocked in task, both title and
-category will be a JSON null value."
+The output is in JSON format constructed in a way so Waybar can process it.
+If there is no clocked in task, alt becomes empty and text will be set to
+'Not clocked in'."
   (let ((category (when org-clock-current-task
                     (get-text-property 0 'org-category org-clock-current-task)))
         (title (when org-clock-current-task