diff --git a/docs/modules/ROOT/pages/node_types.adoc b/docs/modules/ROOT/pages/node_types.adoc
index 2dee1a72b..fa4507c0e 100644
--- a/docs/modules/ROOT/pages/node_types.adoc
+++ b/docs/modules/ROOT/pages/node_types.adoc
@@ -176,8 +176,6 @@ The following fields are given when relevant to nodes in the source code:
 
 |pair|One entry in a hash. |Two children, the key and value nodes.|1 => 2|https://rubydoc.info/github/rubocop-hq/rubocop-ast/RuboCop/AST/PairNode[PairNode]
 
-|rasgn|Right-hand assignment|Two children, the node representing the value to assign and the assignment node.|1 => a |
-
 |rational|Rational literal|One child, the Rational value|2.0r|N/A
 
 |redo|Redo command|None|redo|N/A
diff --git a/lib/rubocop/ast/node.rb b/lib/rubocop/ast/node.rb
index ac33f8848..6c5acb4f7 100644
--- a/lib/rubocop/ast/node.rb
+++ b/lib/rubocop/ast/node.rb
@@ -48,7 +48,7 @@ class Node < Parser::AST::Node # rubocop:disable Metrics/ClassLength
 
       # @api private
       EQUALS_ASSIGNMENTS = %i[lvasgn ivasgn cvasgn gvasgn
-                              casgn masgn rasgn mrasgn].to_set.freeze
+                              casgn masgn].to_set.freeze
       # @api private
       SHORTHAND_ASSIGNMENTS = %i[op_asgn or_asgn and_asgn].to_set.freeze
       # @api private