1 files changed, 1 insertions, 1 deletions
diff --git a/library/cpp/yaml/fyamlcpp/fyamlcpp.cpp b/library/cpp/yaml/fyamlcpp/fyamlcpp.cpp
index d990d056e30..4bfae039942 100644
--- a/library/cpp/yaml/fyamlcpp/fyamlcpp.cpp
+++ b/library/cpp/yaml/fyamlcpp/fyamlcpp.cpp
@@ -417,7 +417,7 @@ void TMapping::Remove(const TNodePairRef& toRemove) {
     free(toRemove.Pair_);
 }
 
-bool TMapping::Has(TString key) {
+bool TMapping::Has(TString key) const {
     return fy_node_mapping_lookup_by_string(Node_, key.data(), key.size()) != nullptr;
 }