diff --git a/ydb/public/api/protos/ydb_topic.proto b/ydb/public/api/protos/ydb_topic.proto
index 98fb38b118f7..b7d064199af8 100644
--- a/ydb/public/api/protos/ydb_topic.proto
+++ b/ydb/public/api/protos/ydb_topic.proto
@@ -1089,9 +1089,9 @@ message DescribeTopicResult {
         PartitionLocation partition_location = 6;
 
         // Inclusive left border. Emptiness means -inf.
-        optional bytes FromBound = 7;
+        optional bytes from_bound = 7;
         // Exclusive right border. Emptiness means +inf.
-        optional bytes ToBound = 8;
+        optional bytes to_bound = 8;
     }
 
     message TopicStats {
diff --git a/ydb/public/sdk/cpp/client/ydb_topic/impl/topic.cpp b/ydb/public/sdk/cpp/client/ydb_topic/impl/topic.cpp
index a92e1ca8ee00..29171622ce3e 100644
--- a/ydb/public/sdk/cpp/client/ydb_topic/impl/topic.cpp
+++ b/ydb/public/sdk/cpp/client/ydb_topic/impl/topic.cpp
@@ -404,12 +404,12 @@ TPartitionInfo::TPartitionInfo(const Ydb::Topic::DescribeTopicResult::PartitionI
         PartitionLocation_ = TPartitionLocation{partitionInfo.partition_location()};
     }
 
-    if (partitionInfo.HasFromBound()) {
-        FromBound_ = TString(partitionInfo.GetFromBound());
+    if (partitionInfo.has_from_bound()) {
+        FromBound_ = TString(partitionInfo.from_bound());
     }
 
-    if (partitionInfo.HasToBound()) {
-        ToBound_ = TString(partitionInfo.GetToBound());
+    if (partitionInfo.has_to_bound()) {
+        ToBound_ = TString(partitionInfo.to_bound());
     }
 }
 
diff --git a/ydb/services/persqueue_v1/actors/schema_actors.cpp b/ydb/services/persqueue_v1/actors/schema_actors.cpp
index 1f40f36dde2f..05ef7cedfe8e 100644
--- a/ydb/services/persqueue_v1/actors/schema_actors.cpp
+++ b/ydb/services/persqueue_v1/actors/schema_actors.cpp
@@ -1076,10 +1076,10 @@ void TDescribeTopicActor::HandleCacheNavigateResponse(TEvTxProxySchemeCache::TEv
             destPart->set_active(sourcePart.GetStatus() == ::NKikimrPQ::ETopicPartitionStatus::Active);
             if (sourcePart.HasKeyRange()) {
                 if (sourcePart.GetKeyRange().HasFromBound()) {
-                    destPart->set_frombound(sourcePart.GetKeyRange().GetFromBound());
+                    destPart->set_from_bound(sourcePart.GetKeyRange().GetFromBound());
                 }
                 if (sourcePart.GetKeyRange().HasToBound()) {
-                    destPart->set_tobound(sourcePart.GetKeyRange().GetToBound());
+                    destPart->set_to_bound(sourcePart.GetKeyRange().GetToBound());
                 }
             }