diff --git a/client/src/telethon/_impl/client/client/files.py b/client/src/telethon/_impl/client/client/files.py
index 78a97865..065cd994 100644
--- a/client/src/telethon/_impl/client/client/files.py
+++ b/client/src/telethon/_impl/client/client/files.py
@@ -317,7 +317,7 @@ async def do_send_file(
                 media=input_media,
                 message=message,
                 random_id=random_id,
-                reply_markup=buttons.build() if buttons is not None else None,
+                reply_markup=buttons._build() if buttons is not None else None,
                 entities=entities,
                 schedule_date=None,
                 send_as=None,
diff --git a/client/src/telethon/_impl/client/client/messages.py b/client/src/telethon/_impl/client/client/messages.py
index 95d2db23..6ccbac7a 100644
--- a/client/src/telethon/_impl/client/client/messages.py
+++ b/client/src/telethon/_impl/client/client/messages.py
@@ -78,7 +78,7 @@ async def send_message(
             ),
             message=message,
             random_id=random_id,
-            reply_markup=buttons.build() if buttons is not None else None,
+            reply_markup=buttons._build() if buttons is not None else None,
             entities=entities,
             schedule_date=None,
             send_as=None,
@@ -141,7 +141,7 @@ async def edit_message(
                 id=message_id,
                 message=message,
                 media=None,
-                reply_markup=buttons.build() if buttons is not None else None,
+                reply_markup=buttons._build() if buttons is not None else None,
                 entities=entities,
                 schedule_date=None,
             )
diff --git a/client/src/telethon/_impl/client/types/buttons/reply_markup.py b/client/src/telethon/_impl/client/types/buttons/reply_markup.py
index 7d25eaa8..db3cabe0 100644
--- a/client/src/telethon/_impl/client/types/buttons/reply_markup.py
+++ b/client/src/telethon/_impl/client/types/buttons/reply_markup.py
@@ -47,7 +47,7 @@ class ReplyKeyboardMarkup:
         self.persistent = persistent
         self.placeholder = placeholder
 
-    def build(self) -> abcs.ReplyMarkup:
+    def _build(self) -> abcs.ReplyMarkup:
         return types.ReplyKeyboardMarkup(
             resize=self.resize,
             single_use=self.single_use,
@@ -64,7 +64,7 @@ class ReplyInlineMarkup:
     def __init__(self, btns: list[Button] | list[list[Button]]) -> None:
         self._btns = build_keyboard_rows(btns)
 
-    def build(self) -> abcs.ReplyMarkup:
+    def _build(self) -> abcs.ReplyMarkup:
         return types.ReplyInlineMarkup(rows=self._btns)