diff --git a/post_parser.py b/post_parser.py
index 9d3f2b0..1b53324 100644
--- a/post_parser.py
+++ b/post_parser.py
@@ -318,6 +318,10 @@ class PostParser:
         if re.search(r'(?i)\bдонат\w*\b', message_text):
             flags.append("donat")
 
+        # Check for t.me/boost links and add donat flag
+        if re.search(r'https?://(?:www\.)?t\.me/boost/', message_text):
+            flags.append("donat")
+
         # Check if the post's reactions contain more clown emojis (🤡).
         if getattr(message, "reactions", None):
             for reaction in message.reactions.reactions:
diff --git a/tests/test_post_parser_flags.py b/tests/test_post_parser_flags.py
index 5d0edf7..a3aef7e 100644
--- a/tests/test_post_parser_flags.py
+++ b/tests/test_post_parser_flags.py
@@ -207,6 +207,11 @@ class TestPostParserExtractFlags(unittest.TestCase):
         message = self._create_mock_message(text="Support us via ДОНАТ.")
         self.assertIn("donat", self.parser._extract_flags(message))
 
+    def test_flag_donat_with_boost_link(self):
+        """Test that t.me/boost/ links add donat flag."""
+        message = self._create_mock_message(text="Support the channel: https://t.me/boost/channel_name")
+        self.assertIn("donat", self.parser._extract_flags(message))
+
     def test_flag_clown_reaction(self):
         message = self._create_mock_message(reactions_data=[("🤡", 35), ("👍", 10)])
         self.assertIn("clown", self.parser._extract_flags(message))