diff --git a/crates/ai/src/assistant.rs b/crates/ai/src/assistant.rs
index 9ca54e661a74d935356bf52378613e9ffb1dcb0e..2b4f733c8053cd9ba0095f86bc02a4cfeb4bab03 100644
--- a/crates/ai/src/assistant.rs
+++ b/crates/ai/src/assistant.rs
@@ -1911,7 +1911,7 @@ impl ConversationEditor {
         let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
             return;
         };
-        let Some(editor) = workspace.active_item(cx).and_then(|item| item.downcast::<Editor>()) else {
+        let Some(editor) = workspace.active_item(cx).and_then(|item| item.act_as::<Editor>(cx)) else {
             return;
         };