diff --git a/src/panels/config/automation/ha-config-automation.ts b/src/panels/config/automation/ha-config-automation.ts
index a4fa5d38ab..70f2b16add 100644
--- a/src/panels/config/automation/ha-config-automation.ts
+++ b/src/panels/config/automation/ha-config-automation.ts
@@ -87,7 +87,7 @@ class HaConfigAutomation extends HassRouterPage {
       (!changedProps || changedProps.has("route")) &&
       this._currentPage !== "dashboard"
     ) {
-      const automationId = this.routeTail.path.substr(1);
+      const automationId = decodeURIComponent(this.routeTail.path.substr(1));
       pageEl.automationId = automationId === "new" ? null : automationId;
     }
   }