diff --git a/src/index.cpp b/src/index.cpp
index 6592b87b..e88badc0 100644
--- a/src/index.cpp
+++ b/src/index.cpp
@@ -1958,6 +1958,7 @@ Option<bool> Index::rearrange_filter_tree(filter_node_t* const root,
     if (root == nullptr) {
         return Option(true);
     }
+
     if (root->isOperator) {
         uint32_t l_filter_ids_length = 0;
         if (root->left != nullptr) {