diff --git a/rpdata/api/LogHeader.js b/rpdata/api/LogHeader.js
index 8856654..1ee9a97 100644
--- a/rpdata/api/LogHeader.js
+++ b/rpdata/api/LogHeader.js
@@ -89,6 +89,11 @@ const logHeaderApi = {
    * @returns {Promise<LogHeader[]>}
    */
   list(filter = {}) {
+    filter = Object.assign({}, filter)
+    if (filter.limit != null && filter.limit <= 0) {
+      delete filter.limit
+    }
+
     return query(`
       query LogHeaders($filter: LogsFilter) {
         headers: logs(filter:$filter) {