diff --git a/lib/shoulda/matchers/active_record/validate_uniqueness_of_matcher.rb b/lib/shoulda/matchers/active_record/validate_uniqueness_of_matcher.rb
index a0084fd5c..42faf4626 100644
--- a/lib/shoulda/matchers/active_record/validate_uniqueness_of_matcher.rb
+++ b/lib/shoulda/matchers/active_record/validate_uniqueness_of_matcher.rb
@@ -737,6 +737,7 @@ def does_not_match_uniqueness_with_case_sensitivity_strategy?
 
         def should_test_case_sensitivity?
           case_sensitivity_strategy != :ignore &&
+            model.column_for_attribute(attribute).type != :uuid &&
             existing_value_read.respond_to?(:swapcase) &&
             !existing_value_read.empty?
         end