diff --git a/README.md b/README.md
index 39c79a1..9b86183 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,7 @@ To add the current task to Waybar, add this snippet to your config:
 ```
 
 Then, add `custom/org` to `modules-left`/`modules-center`/`module-right` if your bar’s configuration.  You can find a minimal working configuration in the [`examples`](./examples) directory.
+
+## Customization
+
+To see a list of configurable parts, use `M-x customize-group <RET> org-clock-waybar`.
diff --git a/org-clock-waybar.el b/org-clock-waybar.el
index c3d3986..79ae241 100644
--- a/org-clock-waybar.el
+++ b/org-clock-waybar.el
@@ -52,6 +52,12 @@
   :type 'string
   :group 'org-clock-waybar)
 
+(defcustom org-clock-waybar-not-clocked-in-text
+  "Not clocked in"
+  "Text to display when not clocked in on any task."
+  :type 'string
+  :group 'org-clock-waybar)
+
 (defconst org-clock-waybar-filename-coding-system
   (if (coding-system-p 'utf-8-emacs)
       'utf-8-emacs
@@ -62,15 +68,20 @@
   "Save the currently clocked-in task’s data to BUFFER.
 
 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'."
+If there is no clocked in task, alt becomes empty and text will be set to the
+value of `org-clock-waybar-not-clocked-in-text'."
   (let ((category (when org-clock-current-task
                     (get-text-property 0 'org-category org-clock-current-task)))
         (title (when org-clock-current-task
                  (substring-no-properties org-clock-current-task)))
         (output (json-new-object)))
     (with-current-buffer buffer
-      (setq output (json-add-to-object output "text" (if title title "Not clocked in")))
+      (setq output (json-add-to-object
+                    output
+                    "text"
+                    (if title
+                        title
+                      org-clock-waybar-not-clocked-in-text)))
       (setq output (json-add-to-object output "alt" (if category category "")))
       (setq output (json-add-to-object output "tooltip" ""))
       (setq output (json-add-to-object output "class" ""))