correct call grammar error (#3473)
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index d3dc111..b4dacf8 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -689,7 +689,7 @@
                 :   ["," "**" `expression`]
                 : | `keyword_arguments` ["," "*" `expression`]
                 :   ["," "**" `expression`]
-                : | "*" `expression` ["," "*" `expression`] ["," "**" `expression`]
+                : | "*" `expression` ["," `keyword_arguments`] ["," "**" `expression`]
                 : | "**" `expression`
    positional_arguments: `expression` ("," `expression`)*
    keyword_arguments: `keyword_item` ("," `keyword_item`)*