diff --git a/src/connector/src/source/cdc/external/postgres.rs b/src/connector/src/source/cdc/external/postgres.rs
index 39ffda22faebf..ca0caf46d6125 100644
--- a/src/connector/src/source/cdc/external/postgres.rs
+++ b/src/connector/src/source/cdc/external/postgres.rs
@@ -543,7 +543,7 @@ mod tests {
         let config =
             serde_json::from_value::<ExternalTableConfig>(serde_json::to_value(props).unwrap())
                 .unwrap();
-        let reader = PostgresExternalTableReader::new(config, rw_schema, vec![0, 1], 1000)
+        let reader = PostgresExternalTableReader::new(config, rw_schema, vec![0, 1])
             .await
             .unwrap();