diff --git a/tee-worker/omni-executor/pumpx/src/pumpx_api/mod.rs b/tee-worker/omni-executor/pumpx/src/pumpx_api/mod.rs
index e03befce82..5acda4c3ed 100644
--- a/tee-worker/omni-executor/pumpx/src/pumpx_api/mod.rs
+++ b/tee-worker/omni-executor/pumpx/src/pumpx_api/mod.rs
@@ -111,6 +111,7 @@ impl PumpxApi {
 		let response = self
 			.http_client
 			.post(endpoint)
+			.header("Content-Length", 0)
 			.header("X-Language", language.unwrap_or("en".to_string()))
 			.bearer_auth(access_token)
 			.send()