diff --git a/frontend/src/hooks/react-query/agents/utils.ts b/frontend/src/hooks/react-query/agents/utils.ts
index 3f202dc0..5708d921 100644
--- a/frontend/src/hooks/react-query/agents/utils.ts
+++ b/frontend/src/hooks/react-query/agents/utils.ts
@@ -81,7 +81,7 @@ export type ThreadAgentResponse = {
 export type AgentCreateRequest = {
   name: string;
   description?: string;
-  system_prompt: string;
+  system_prompt?: string;
   configured_mcps?: Array<{
     name: string;
     config: Record<string, any>;