diff --git a/ChangeLog b/ChangeLog
index 7b11b00db9..a9fb3a4fdb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+Sun May 24 02:02:00 2015  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_symbol.rb: fix syntax error.
+
+Sun May 24 02:02:00 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* hash.c (rb_any_hash): Symbols are compared by the identities
+	  always.  [ruby-core:68767] [Bug #11035]
+
 Sun May 24 02:01:07 2015  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* hash.c (rb_any_hash): use same hash values with Float#hash so
diff --git a/hash.c b/hash.c
index 3ef0ed458f..fb4c5a5d1b 100644
--- a/hash.c
+++ b/hash.c
@@ -149,6 +149,9 @@ rb_any_hash(VALUE a)
     else if (BUILTIN_TYPE(a) == T_STRING) {
 	hnum = rb_str_hash(a);
     }
+    else if (BUILTIN_TYPE(a) == T_SYMBOL) {
+	hnum = rb_objid_hash((st_index_t)a);
+    }
     else if (BUILTIN_TYPE(a) == T_FLOAT) {
 	return rb_dbl_hash(rb_float_value(a));
     }
diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 57170fefef..ee29cd544f 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -267,4 +267,23 @@ class TestSymbol < Test::Unit::TestCase
       200_000.times { |i| i.to_s.to_sym }
     end;
   end
+
+  def test_hash_redefinition
+    assert_separately([], <<-'end;')
+      bug11035 = '[ruby-core:68767] [Bug #11035]'
+      class Symbol
+        def hash
+          raise
+        end
+      end
+
+      h = {}
+      assert_nothing_raised(RuntimeError, bug11035) {
+        h[:foo] = 1
+      }
+      assert_nothing_raised(RuntimeError, bug11035) {
+        h['bar'.to_sym] = 2
+      }
+    end;
+  end
 end
diff --git a/version.h b/version.h
index 832802733a..8e5961959e 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.2.3"
 #define RUBY_RELEASE_DATE "2015-05-24"
-#define RUBY_PATCHLEVEL 116
+#define RUBY_PATCHLEVEL 117
 
 #define RUBY_RELEASE_YEAR 2015
 #define RUBY_RELEASE_MONTH 5