diff --git a/lib/rspec/rails/matchers/relation_match_array.rb b/lib/rspec/rails/matchers/relation_match_array.rb
index 861843b356..419028fb8e 100644
--- a/lib/rspec/rails/matchers/relation_match_array.rb
+++ b/lib/rspec/rails/matchers/relation_match_array.rb
@@ -1,3 +1,3 @@
-if defined?(ActiveRecord::Relation)
+if defined?(ActiveRecord::Relation) && defined?(RSpec::Matchers::BuiltIn::OperatorMatcher) # RSpec 4 removed OperatorMatcher
   RSpec::Matchers::BuiltIn::OperatorMatcher.register(ActiveRecord::Relation, '=~', RSpec::Matchers::BuiltIn::ContainExactly)
 end