diff --git a/src/doc/en/developer/coding_in_python.rst b/src/doc/en/developer/coding_in_python.rst
index bb08408777b..1ea6eebb317 100644
--- a/src/doc/en/developer/coding_in_python.rst
+++ b/src/doc/en/developer/coding_in_python.rst
@@ -786,13 +786,13 @@ the procedure below:
     class NewClass:
         ...
 
-    OldClass = NewClass   # OldClass is deprecated. See Issue 12345.
+    OldClass = NewClass   # OldClass is deprecated. See Issue #12345.
 
 * **Removing a class:**  add a comment:
 
   .. CODE-BLOCK:: python
 
-    # OldClass is deprecated. See Issue 12345.
+    # OldClass is deprecated. See Issue #12345.
 
     class OldClass: