diff --git a/CHANGES b/CHANGES
index 16edc8042..fe0f2c32d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -34,6 +34,7 @@ Bugs fixed
 * #5463: mathbase: math_role and MathDirective was disappeared in 1.8.0
 * #5454: latex: Index has disappeared from PDF for Japanese documents
 * #5432: py domain: ``:type:`` field can't process ``:term:`` references
+* #5426: py domain: TypeError has been raised for class attribute
 
 Testing
 --------
diff --git a/sphinx/util/docfields.py b/sphinx/util/docfields.py
index 2b8cb6425..94968e148 100644
--- a/sphinx/util/docfields.py
+++ b/sphinx/util/docfields.py
@@ -319,7 +319,8 @@ class DocFieldTransformer(object):
                         fieldbody.children[0].extend(xrefs)
                     else:
                         fieldbody.clear()
-                        fieldbody.extend(xrefs)
+                        fieldbody += nodes.paragraph()
+                        fieldbody[0].extend(xrefs)
 
                 continue