diff --git a/mrblib/enum.rb b/mrblib/enum.rb
index 6496e559b..e4f8973dd 100644
--- a/mrblib/enum.rb
+++ b/mrblib/enum.rb
@@ -342,6 +342,11 @@ module Enumerable
 
   # redefine #hash 15.3.1.3.15
   def hash
+    if __method_recursive?(:hash)
+      # Recursion detected, return a fixed value to break the loop
+      return 0
+    end
+
     h = 12347
     i = 0
     self.each do |e|
diff --git a/test/t/array.rb b/test/t/array.rb
index 52ae7ccb0..ab34264f0 100644
--- a/test/t/array.rb
+++ b/test/t/array.rb
@@ -468,3 +468,11 @@ assert('Array#delete') do
   assert_equal nil, a.delete(nil) { "?" }
   assert_equal [], a
 end
+
+assert('Array#hash with self-referencing arrays') do
+  a = []
+  a << a
+  b = []
+  b << b
+  assert_equal a.hash, b.hash
+end