diff --git a/src/daemon.rs b/src/daemon.rs
index fbf5165dd..90e38a931 100644
--- a/src/daemon.rs
+++ b/src/daemon.rs
@@ -532,7 +532,7 @@ impl Daemon {
     // Missing estimates are logged but do not cause a failure, whatever is available is returned
     #[allow(clippy::float_cmp)]
     pub fn estimatesmartfee_batch(&self, conf_targets: &[u16]) -> Result<HashMap<u16, f64>> {
-        let params_list: Vec<Value> = conf_targets.iter().map(|t| json!([t])).collect();
+        let params_list: Vec<Value> = conf_targets.iter().map(|t| json!([t, "ECONOMICAL"])).collect();
 
         Ok(self
             .requests("estimatesmartfee", &params_list)?