refactor: Set source_info to nodes

1 files changed, 1 insertions, 0 deletions

diff --git a/sphinx/directives/__init__.py b/sphinx/directives/__init__.py
index 8f290d62d..0d9490f31 100644
--- a/sphinx/directives/__init__.py
+++ b/sphinx/directives/__init__.py
@@ -171,6 +171,7 @@ class ObjectDescription(SphinxDirective):
             # add a signature node for each signature in the current unit
             # and add a reference target for it
             signode = addnodes.desc_signature(sig, '')
+            self.set_source_info(signode)
             node.append(signode)
             try:
                 # name can also be a tuple, e.g. (classname, objname);