diff --git a/plugins/wasm-go/extensions/ai-search/main.go b/plugins/wasm-go/extensions/ai-search/main.go
index daeac08c..ed62ee27 100644
--- a/plugins/wasm-go/extensions/ai-search/main.go
+++ b/plugins/wasm-go/extensions/ai-search/main.go
@@ -289,6 +289,7 @@ func onHttpRequestHeaders(ctx wrapper.HttpContext, config Config, log wrapper.Lo
 	}
 	ctx.SetRequestBodyBufferLimit(DEFAULT_MAX_BODY_BYTES)
 	_ = proxywasm.RemoveHttpRequestHeader("Accept-Encoding")
+	_ = proxywasm.RemoveHttpRequestHeader("Content-Length")
 	return types.ActionContinue
 }