diff --git a/lib/global_id/identification.rb b/lib/global_id/identification.rb
index 716151f..d64c7d6 100644
--- a/lib/global_id/identification.rb
+++ b/lib/global_id/identification.rb
@@ -5,7 +5,7 @@ module Identification
     extend ActiveSupport::Concern
 
     def to_global_id(options = {})
-      @global_id ||= GlobalID.create(self, options)
+      GlobalID.create(self, options)
     end
     alias to_gid to_global_id
 
diff --git a/test/cases/global_identification_test.rb b/test/cases/global_identification_test.rb
index 578f25d..86f51d9 100644
--- a/test/cases/global_identification_test.rb
+++ b/test/cases/global_identification_test.rb
@@ -29,4 +29,12 @@ class GlobalIdentificationTest < ActiveSupport::TestCase
     assert_equal SignedGlobalID.create(@model, some: 'param'), @model.to_signed_global_id(some: 'param')
     assert_equal SignedGlobalID.create(@model, some: 'param'), @model.to_sgid(some: 'param')
   end
+
+  test 'dup should clear memoized to_global_id' do
+    global_id = @model.to_global_id
+    dup_model = @model.dup
+    dup_model.id = @model.id + 1
+    dup_global_id = dup_model.to_global_id
+    assert_not_equal global_id, dup_global_id
+  end
 end