diff --git a/x-pack/platform/plugins/shared/onechat/public/application/hooks/use_conversation.ts b/x-pack/platform/plugins/shared/onechat/public/application/hooks/use_conversation.ts
index 47f720adce503..5b135811a2a3c 100644
--- a/x-pack/platform/plugins/shared/onechat/public/application/hooks/use_conversation.ts
+++ b/x-pack/platform/plugins/shared/onechat/public/application/hooks/use_conversation.ts
@@ -69,7 +69,9 @@ const createActions = ({
     },
     setToolCallResult: ({ result, toolCallId }: { result: string; toolCallId: string }) => {
       setCurrentRound((round) => {
-        const step = round.steps.find((s) => isToolCallStep(s) && s.toolCallId === toolCallId);
+        const step = round.steps.find(
+          (s) => isToolCallStep(s) && s.toolCallId === toolCallId
+        ) as ToolCallStep;
         if (step) {
           step.result = result;
         }