diff --git a/lib/sequel/plugins/microsecond_timestamp_precision.rb b/lib/sequel/plugins/microsecond_timestamp_precision.rb
index 9838ccbd535..998fafe277c 100644
--- a/lib/sequel/plugins/microsecond_timestamp_precision.rb
+++ b/lib/sequel/plugins/microsecond_timestamp_precision.rb
@@ -2,8 +2,8 @@ module Sequel
   module Plugins
     module MicrosecondTimestampPrecision
       module DatasetMethods
-        def supports_timestamp_usecs?
-          true
+        def default_timestamp_format
+          "'%Y-%m-%d %H:%M:%S.%6N'"
         end
       end
     end
diff --git a/spec/migrations/20231016094900_microsecond_timestamp_msql_asg_update_spec.rb b/spec/migrations/20231016094900_microsecond_timestamp_msql_asg_update_spec.rb
index 8fa89ebffe3..0352eb52793 100644
--- a/spec/migrations/20231016094900_microsecond_timestamp_msql_asg_update_spec.rb
+++ b/spec/migrations/20231016094900_microsecond_timestamp_msql_asg_update_spec.rb
@@ -5,11 +5,7 @@
   include_context 'migration' do
     let(:migration_filename) { '20231016094900_microsecond_timestamp_msql_asg_update.rb' }
     let(:ds) do
-      db[:asg_timestamps].with_extend do
-        def supports_timestamp_usecs?
-          true
-        end
-      end
+      db[:asg_timestamps].with_extend(Sequel::Plugins::MicrosecondTimestampPrecision::DatasetMethods)
     end
   end