diff --git a/src/panels/developer-tools/assist/developer-tools-assist.ts b/src/panels/developer-tools/assist/developer-tools-assist.ts
index 5d050d4ceb32..ed99e6bb7942 100644
--- a/src/panels/developer-tools/assist/developer-tools-assist.ts
+++ b/src/panels/developer-tools/assist/developer-tools-assist.ts
@@ -92,7 +92,9 @@ class HaPanelDevAssist extends SubscribeMixin(LitElement) {
 
   private async _fetchLanguages() {
     const { agents } = await listAgents(this.hass);
-    const assistAgent = agents.find((agent) => agent.id === "homeassistant");
+    const assistAgent = agents.find(
+      (agent) => agent.id === "conversation.home_assistant"
+    );
     this.supportedLanguages =
       assistAgent?.supported_languages === "*"
         ? undefined