kill superfluous 'comprehension' case (closes #13658)
diff --git a/Doc/reference/compound_stmts.rst b/Doc/reference/compound_stmts.rst
index e7a6f18..e20eeb0 100644
--- a/Doc/reference/compound_stmts.rst
+++ b/Doc/reference/compound_stmts.rst
@@ -554,7 +554,7 @@
 
 .. productionlist::
    classdef: [`decorators`] "class" `classname` [`inheritance`] ":" `suite`
-   inheritance: "(" [`argument_list` [","] | `comprehension`] ")"
+   inheritance: "(" [`parameter_list`] ")"
    classname: `identifier`
 
 A class definition is an executable statement.  The inheritance list usually