diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 4b940b3..b625948 100644
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -1121,7 +1121,8 @@ fontified."
       name: (identifier) @font-lock-function-name-face)
      (class_definition
       name: (identifier) @font-lock-type-face)
-     (parameters (identifier) @font-lock-variable-name-face))
+     (parameters (identifier) @font-lock-variable-name-face)
+     (parameters (default_parameter name: (identifier) @font-lock-variable-name-face)))
 
    :feature 'function
    :language 'python