diff --git a/sphinx/domains/python.py b/sphinx/domains/python.py
index 5c6db3696..8ada379b2 100644
--- a/sphinx/domains/python.py
+++ b/sphinx/domains/python.py
@@ -889,7 +889,10 @@ class PyProperty(PyObject):
         typ = self.options.get('type')
         if typ:
             annotations = _parse_annotation(typ, self.env)
-            signode += addnodes.desc_annotation(typ, '', nodes.Text(': '), *annotations)
+            signode += addnodes.desc_annotation(typ, '',
+                                                addnodes.desc_sig_punctuation('', ':'),
+                                                addnodes.desc_sig_space(),
+                                                *annotations)
 
         return fullname, prefix
 
diff --git a/tests/test_domain_py.py b/tests/test_domain_py.py
index 6e799ae79..e2fbc5def 100644
--- a/tests/test_domain_py.py
+++ b/tests/test_domain_py.py
@@ -876,14 +876,16 @@ def test_pyproperty(app):
                 entries=[('single', 'prop1 (Class property)', 'Class.prop1', '', None)])
     assert_node(doctree[1][1][1], ([desc_signature, ([desc_annotation, "abstract property "],
                                                      [desc_name, "prop1"],
-                                                     [desc_annotation, (": ",
+                                                     [desc_annotation, ([desc_sig_punctuation, ':'],
+                                                                        desc_sig_space,
                                                                         [pending_xref, "str"])])],
                                    [desc_content, ()]))
     assert_node(doctree[1][1][2], addnodes.index,
                 entries=[('single', 'prop2 (Class property)', 'Class.prop2', '', None)])
     assert_node(doctree[1][1][3], ([desc_signature, ([desc_annotation, "class property "],
                                                      [desc_name, "prop2"],
-                                                     [desc_annotation, (": ",
+                                                     [desc_annotation, ([desc_sig_punctuation, ':'],
+                                                                        desc_sig_space,
                                                                         [pending_xref, "str"])])],
                                    [desc_content, ()]))
     assert 'Class.prop1' in domain.objects