diff --git a/.chronus/changes/python-deserializationErrorDocs-2025-1-26-12-38-48.md b/.chronus/changes/python-deserializationErrorDocs-2025-1-26-12-38-48.md
new file mode 100644
index 00000000000..daed79a9ba4
--- /dev/null
+++ b/.chronus/changes/python-deserializationErrorDocs-2025-1-26-12-38-48.md
@@ -0,0 +1,7 @@
+---
+changeKind: fix
+packages:
+  - "@typespec/http-client-python"
+---
+
+Fix sphinx syntax for raising `DeserializationError` in serialization file
\ No newline at end of file
diff --git a/packages/http-client-python/generator/pygen/codegen/templates/serialization.py.jinja2 b/packages/http-client-python/generator/pygen/codegen/templates/serialization.py.jinja2
index 15635acf40c..5edfa12ff5a 100644
--- a/packages/http-client-python/generator/pygen/codegen/templates/serialization.py.jinja2
+++ b/packages/http-client-python/generator/pygen/codegen/templates/serialization.py.jinja2
@@ -410,7 +410,7 @@ class Model:
         :param function key_extractors: A key extractor function.
         :param str content_type: JSON by default, set application/xml if XML.
         :returns: An instance of this model
-        :raises: DeserializationError if something went wrong
+        :raises DeserializationError: if something went wrong
         :rtype: Self
         """
         deserializer = Deserializer(cls._infer_class_models())