diff --git a/CHANGES/1496.bugfix.rst b/CHANGES/1496.bugfix.rst
new file mode 100644
index 00000000..02d44dbf
--- /dev/null
+++ b/CHANGES/1496.bugfix.rst
@@ -0,0 +1 @@
+Fixed wrong :code:`MarkdownV2` custom emoji parsing in :code:`aiogram.utils.text_decorations`
diff --git a/aiogram/utils/text_decorations.py b/aiogram/utils/text_decorations.py
index 58d6c0f4..ae6227d3 100644
--- a/aiogram/utils/text_decorations.py
+++ b/aiogram/utils/text_decorations.py
@@ -253,7 +253,7 @@ class MarkdownDecoration(TextDecoration):
         return re.sub(pattern=self.MARKDOWN_QUOTE_PATTERN, repl=r"\\\1", string=value)
 
     def custom_emoji(self, value: str, custom_emoji_id: str) -> str:
-        return self.link(value=value, link=f"tg://emoji?id={custom_emoji_id}")
+        return f'!{self.link(value=value, link=f"tg://emoji?id={custom_emoji_id}")}'
 
     def blockquote(self, value: str) -> str:
         return "\n".join(f">{line}" for line in value.splitlines())
diff --git a/tests/test_utils/test_text_decorations.py b/tests/test_utils/test_text_decorations.py
index 6a177ab3..2696f078 100644
--- a/tests/test_utils/test_text_decorations.py
+++ b/tests/test_utils/test_text_decorations.py
@@ -99,7 +99,7 @@ class TestTextDecoration:
             [
                 markdown_decoration,
                 MessageEntity(type="custom_emoji", offset=0, length=5, custom_emoji_id="42"),
-                "[test](tg://emoji?id=42)",
+                "![test](tg://emoji?id=42)",
             ],
             [
                 markdown_decoration,