diff --git a/README.md b/README.md
index 3729236b..6682085c 100644
--- a/README.md
+++ b/README.md
@@ -3416,7 +3416,7 @@ The card can respond to actions in the query string (see [below](#query-string-a
 This example assumes the dashboard URL is `https://ha.mydomain.org/lovelace-test/0`.
 
 ```
-https://ha.mydomain.org/lovelace-test/0?frigate-card-action/camera_select=kitchen&frigate-card-action/expand_toggle
+https://ha.mydomain.org/lovelace-test/0?frigate-card-action:camera_select=kitchen&frigate-card-action:expand_toggle
 ```
 </details>
 
@@ -3435,7 +3435,7 @@ cameras:
 ```
 
 ```
-https://ha.mydomain.org/lovelace-test/0?frigate-card-action/main/clips
+https://ha.mydomain.org/lovelace-test/0?frigate-card-action:main:clips
 ```
 </details>
 
@@ -3508,13 +3508,13 @@ It is possible to pass the Frigate card one or more actions from the URL (e.g. s
 To send an action to *all* Frigate cards on a dashboard:
 
 ```
-[PATH_TO_YOUR_HA_DASHBOARD]?frigate-card-action/[ACTION]=[VALUE]
+[PATH_TO_YOUR_HA_DASHBOARD]?frigate-card-action:[ACTION]=[VALUE]
 ```
 
 To send an action to a named Frigate card on the dashboard:
 
 ```
-[PATH_TO_YOUR_HA_DASHBOARD]?frigate-card-action/[CARD_ID]/[ACTION]=[VALUE]
+[PATH_TO_YOUR_HA_DASHBOARD]?frigate-card-action:[CARD_ID]:[ACTION]=[VALUE]
 ```
 
 | Parameter | Description |
diff --git a/src/utils/querystring.ts b/src/utils/querystring.ts
index ccf916e3..133d9ca0 100644
--- a/src/utils/querystring.ts
+++ b/src/utils/querystring.ts
@@ -4,7 +4,7 @@ import { createFrigateCardCustomAction } from './action.js';
 export const getActionsFromQueryString = (): FrigateCardCustomAction[] => {
   const params = new URLSearchParams(window.location.search);
   const actions: FrigateCardCustomAction[] = [];
-  const actionRE = new RegExp(/^frigate-card-action(\/(?<cardID>\w+))?\/(?<action>\w+)/);
+  const actionRE = new RegExp(/^frigate-card-action(:(?<cardID>\w+))?:(?<action>\w+)/);
 
   for (const [key, value] of params.entries()) {
     const match = key.match(actionRE);