diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index 0bc49c1daa83e9e56e7b26d389f91be63691e8a0..4bf33c38563e854b3f7f1abfa8b90b62efebbf5a 100644
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -516,7 +516,7 @@ def self.create_fixtures(fixtures_directory, table_names, class_names = {})
             # Cap primary key sequences to max(pk).
             if connection.respond_to?(:reset_pk_sequence!)
               table_names.each do |table_name|
-                connection.reset_pk_sequence!(table_name)
+                connection.reset_pk_sequence!(table_name.tr('/', '_'))
               end
             end
           end